diff --git a/packages/ui/.loki/reference/chrome_minimal_Components_CheckableSelectField_Custom_Search.png b/packages/ui/.loki/reference/chrome_minimal_Components_CheckableSelectField_Custom_Search.png
new file mode 100644
index 000000000..876476ead
Binary files /dev/null and b/packages/ui/.loki/reference/chrome_minimal_Components_CheckableSelectField_Custom_Search.png differ
diff --git a/packages/ui/.loki/reference/chrome_minimal_Components_Overlay_Without_Close_Text.png b/packages/ui/.loki/reference/chrome_minimal_Components_Overlay_Without_Close_Text.png
index 9f92206e7..6d8beb974 100644
Binary files a/packages/ui/.loki/reference/chrome_minimal_Components_Overlay_Without_Close_Text.png and b/packages/ui/.loki/reference/chrome_minimal_Components_Overlay_Without_Close_Text.png differ
diff --git a/packages/ui/__stories__/CheckableSelectField.stories.tsx b/packages/ui/__stories__/CheckableSelectField.stories.tsx
index e36640b7d..ba770084d 100644
--- a/packages/ui/__stories__/CheckableSelectField.stories.tsx
+++ b/packages/ui/__stories__/CheckableSelectField.stories.tsx
@@ -141,3 +141,18 @@ WithoutOptions.args = {
   options: [],
   defaultOpen: true,
 }
+
+export const CustomSearch = Template.bind({})
+CustomSearch.args = {
+  value: [],
+  options,
+  filterOptionsLabel: 'Custom negative search',
+  defaultOpen: true,
+  filterOptions: (candidate, input) => {
+    if (!input) {
+      return true
+    }
+
+    return !candidate.label.toLowerCase().includes(input)
+  },
+}
diff --git a/packages/ui/__tests__/Select/CheckableSelectField.test.tsx b/packages/ui/__tests__/Select/CheckableSelectField.test.tsx
index 33cac8722..4bb996788 100644
--- a/packages/ui/__tests__/Select/CheckableSelectField.test.tsx
+++ b/packages/ui/__tests__/Select/CheckableSelectField.test.tsx
@@ -1,6 +1,6 @@
 import React from 'react'
 import { useUID } from 'react-uid'
-import { mountAndCheckA11Y } from '@hazelcast/test-helpers'
+import { mountAndCheckA11Y, simulateChange } from '@hazelcast/test-helpers'
 import { act } from 'react-dom/test-utils'
 
 import { CheckableSelectField } from '../../src/Select/CheckableSelectField'
@@ -306,4 +306,49 @@ describe('CheckableSelectField', () => {
     expect(wrapper.findDataTest('test-no-options-message').exists()).toBeTruthy()
     expect(wrapper.findDataTest('test-no-options-message').text()).toBe('There are no options')
   })
+
+  it('Custom search', async () => {
+    let id = 0
+    const onChange = jest.fn()
+    const filterOptions = jest.fn()
+    useUIDMock.mockImplementation(() => {
+      id += 1
+      return id.toString()
+    })
+    const wrapper = await mountAndCheckA11Y(
+      <CheckableSelectField
+        defaultOpen
+        name={selectName}
+        label={selectLabel}
+        options={options}
+        value={[]}
+        id={'21313123'}
+        onChange={onChange}
+        data-test="test"
+        filterOptions={filterOptions}
+        noOptionsMessage="There are no options"
+      />,
+    )
+
+    const searchInput = wrapper.findDataTestFirst('test-search').find('input')
+
+    expect(searchInput).toBeTruthy()
+    act(() => {
+      // eslint-disable-next-line @typescript-eslint/no-unsafe-argument
+      simulateChange(searchInput, 'Luke')
+    })
+
+    expect(filterOptions).toHaveBeenCalledTimes(0)
+
+    act(() => {
+      wrapper.findDataTestFirst('test-toggle-custom-search').find('input').simulate('change')
+    })
+
+    act(() => {
+      // eslint-disable-next-line @typescript-eslint/no-unsafe-argument
+      simulateChange(searchInput, 'Luke2')
+    })
+
+    expect(filterOptions).toHaveBeenCalled()
+  })
 })
diff --git a/packages/ui/src/Checkbox.tsx b/packages/ui/src/Checkbox.tsx
index 387b851da..14c30163b 100644
--- a/packages/ui/src/Checkbox.tsx
+++ b/packages/ui/src/Checkbox.tsx
@@ -1,4 +1,4 @@
-import React, { ChangeEvent, FC, FocusEvent, ReactElement, ReactText, useRef, MouseEvent } from 'react'
+import React, { ChangeEvent, FocusEvent, ReactElement, ReactText, useRef, MouseEvent, forwardRef } from 'react'
 import { Check, Minus } from 'react-feather'
 import { DataTestProp } from '@hazelcast/helpers'
 import { useUID } from 'react-uid'
@@ -28,6 +28,7 @@ export type CheckboxExtraProps = {
   required?: boolean
   className?: string
   classNameLabel?: string
+  'aria-label'?: string
   classNameCheckmark?: string
 }
 
@@ -43,7 +44,7 @@ type CheckboxProps = CheckboxCoreProps & CheckboxExtraProps & DataTestProp
  * - It's important to realise that we don't set checkbox value, but state (on/off). That is the main difference from other input types.
  * - They can have a special indeterminate state, that represents a '3rd' value, usually used in tree structures, etc.
  */
-export const Checkbox: FC<CheckboxProps> = (props) => {
+export const Checkbox = forwardRef<HTMLDivElement, CheckboxProps>((props, ref) => {
   const {
     checked,
     name,
@@ -60,14 +61,15 @@ export const Checkbox: FC<CheckboxProps> = (props) => {
     disabled = false,
     required,
     'data-test': dataTest,
+    'aria-label': ariaLabel,
     onClick,
   } = props
   const inputRef = useRef<HTMLInputElement>(null)
   const id = useUID()
 
   return (
-    <div className={classNames(className, { [styles.withError]: 'error' in props })} data-test={dataTest}>
-      {/* 
+    <div ref={ref} className={classNames(className, { [styles.withError]: 'error' in props })} data-test={dataTest}>
+      {/*
         We can only style forward elements based on input state (with ~ or +), has() is not supported yet.
         That's why we need to explicitly pass error/checked/disabled classes to the wrapper element.
       */}
@@ -94,6 +96,7 @@ export const Checkbox: FC<CheckboxProps> = (props) => {
           ref={inputRef}
           id={id}
           name={name}
+          aria-label={ariaLabel}
           checked={!!checked}
           onChange={onChange}
           onBlur={onBlur}
@@ -115,4 +118,6 @@ export const Checkbox: FC<CheckboxProps> = (props) => {
       <Error truncated error={error} className={styles.errorContainer} inputId={id} />
     </div>
   )
-}
+})
+
+Checkbox.displayName = 'Checkbox'
diff --git a/packages/ui/src/Select/CheckableSelectField.module.scss b/packages/ui/src/Select/CheckableSelectField.module.scss
index ab4b81472..e187adb17 100644
--- a/packages/ui/src/Select/CheckableSelectField.module.scss
+++ b/packages/ui/src/Select/CheckableSelectField.module.scss
@@ -35,7 +35,14 @@
 }
 
 .search {
+  display: flex;
+  align-items: center;
+  gap: c.$grid * 2;
   margin-bottom: c.$grid * 2;
+
+  &Field {
+    flex-grow: 1;
+  }
 }
 
 .option {
diff --git a/packages/ui/src/Select/CheckableSelectField.tsx b/packages/ui/src/Select/CheckableSelectField.tsx
index dd27501f3..2fd307aa0 100644
--- a/packages/ui/src/Select/CheckableSelectField.tsx
+++ b/packages/ui/src/Select/CheckableSelectField.tsx
@@ -8,10 +8,12 @@ import { Link } from '../Link'
 import { SelectFieldOption } from './helpers'
 import { TextField } from '../TextField'
 import { HelpProps } from '../Help'
+import { Tooltip } from '../Tooltip'
+import { Checkbox } from '../Checkbox'
 import { useOpenCloseState } from '../hooks'
+import { TruncatedText } from '../TruncatedText'
 
 import styles from './CheckableSelectField.module.scss'
-import { TruncatedText } from '../TruncatedText'
 
 export type CheckableSelectFieldCoreStaticProps<V> = {
   name: string
@@ -40,6 +42,8 @@ export type CheckableSelectFieldExtraProps<V> = {
   noOptionsMessage?: string
   defaultOpen?: boolean
   id?: string
+  filterOptionsLabel?: string
+  filterOptions?: (candidate: SelectFieldOption<V>, input: string) => boolean
 }
 
 export type CheckableSelectProps<V> = CheckableSelectFieldCoreStaticProps<V> & CheckableSelectFieldExtraProps<V>
@@ -77,9 +81,12 @@ export const CheckableSelectField = <V extends string | number = number>(props:
     noneSelectedLabel = 'None selected',
     noOptionsMessage = 'No options',
     id: rootId,
+    filterOptions,
+    filterOptionsLabel,
   } = props
   const id = useUID()
   const { isOpen, toggle, close } = useOpenCloseState(defaultOpen)
+  const { isOpen: isCustomSearchEnabled, toggle: toggleCustomSearch } = useOpenCloseState(false)
   const [searchValue, setSearchValue] = useState('')
   const [forceUpdateToken, setForceUpdateToken] = useState(1)
   const [anchorElement, setAnchorElement] = useState<HTMLElement | null>(null)
@@ -97,8 +104,14 @@ export const CheckableSelectField = <V extends string | number = number>(props:
   const filteredOptions = useMemo(() => {
     const value = searchValue.toLowerCase()
 
-    return options.filter(({ label }) => label.toLowerCase().includes(value))
-  }, [options, searchValue])
+    return options.filter((option) => {
+      if (isCustomSearchEnabled && filterOptions) {
+        return filterOptions(option, value)
+      }
+
+      return option.label.toLowerCase().includes(value)
+    })
+  }, [options, searchValue, isCustomSearchEnabled, filterOptions])
 
   const getValueLabel = () => {
     if (placeholderMode === 'permanent') {
@@ -150,18 +163,34 @@ export const CheckableSelectField = <V extends string | number = number>(props:
         onUpdateLayout={() => setForceUpdateToken((token) => token + 1)}
       >
         <div className={styles.dropdown} data-test={`${dataTest}-dropdown`}>
-          <TextField
-            size={size}
-            iconSize="medium"
-            className={styles.search}
-            name="checkable-select-search"
-            data-test={`${dataTest}-search`}
-            onChange={(e) => setSearchValue(e.target.value)}
-            value={searchValue}
-            label=""
-            disabled={disabled}
-            placeholder={placeholder}
-          />
+          <div className={styles.search}>
+            <TextField
+              size={size}
+              iconSize="medium"
+              className={styles.searchField}
+              name="checkable-select-search"
+              data-test={`${dataTest}-search`}
+              onChange={(e) => setSearchValue(e.target.value)}
+              value={searchValue}
+              label=""
+              disabled={disabled}
+              placeholder={placeholder}
+            />
+            {filterOptions && (
+              <Tooltip content={filterOptionsLabel} zIndex={21}>
+                {(tooltipRef) => (
+                  <Checkbox
+                    ref={tooltipRef}
+                    aria-label="Custom search checkbox"
+                    checked={isCustomSearchEnabled}
+                    name="toggle custom search"
+                    onChange={toggleCustomSearch}
+                    data-test={`${dataTest}-toggle-custom-search`}
+                  />
+                )}
+              </Tooltip>
+            )}
+          </div>
           <div className={styles.options}>
             {filteredOptions.length > 0 ? (
               filteredOptions.map((option) => {
diff --git a/packages/ui/src/Tooltip.tsx b/packages/ui/src/Tooltip.tsx
index 3dca0254d..1a8ece82e 100644
--- a/packages/ui/src/Tooltip.tsx
+++ b/packages/ui/src/Tooltip.tsx
@@ -25,8 +25,6 @@ import { getPortalContainer, PortalContainer } from './utils/portal'
 
 import styles from './Tooltip.module.scss'
 
-const tooltipZIndex = 20
-
 const TooltipContext = createContext<{
   hide: () => void
   clearHideTimeout: () => void
@@ -47,14 +45,15 @@ export type TooltipProps = {
   hoverAbleTooltip?: boolean
   children: (
     ref: React.Dispatch<React.SetStateAction<HTMLElement | null>>,
-    onMouseEnter?: MouseEventHandler<Element>,
-    onMouseLeave?: MouseEventHandler<Element>,
+    onMouseEnter?: MouseEventHandler,
+    onMouseLeave?: MouseEventHandler,
   ) => ReactNode
   popperRef?: MutableRefObject<PopperRef | undefined>
   updateToken?: ReactText | boolean
   tooltipContainer?: PortalContainer
   wordBreak?: CSSProperties['wordBreak']
   disabled?: boolean
+  zIndex?: number
 }
 
 /**
@@ -88,6 +87,7 @@ export const Tooltip: FC<TooltipProps> = ({
   tooltipContainer = 'body',
   hoverAbleTooltip = true,
   disabled = false,
+  zIndex = 20,
 }) => {
   const [isShown, setShown] = useState<boolean>(false)
   const timeoutRef = useRef<NodeJS.Timeout | null>(null)
@@ -225,7 +225,7 @@ export const Tooltip: FC<TooltipProps> = ({
                   className={cn(styles.overlay, {
                     [styles.hidden]: !isTooltipVisible,
                   })}
-                  style={{ ...popper.styles.popper, ...{ zIndex: context ? tooltipZIndex + 1 : tooltipZIndex }, wordBreak }}
+                  style={{ ...popper.styles.popper, ...{ zIndex: context ? zIndex + 1 : zIndex }, wordBreak }}
                   data-test="tooltip-overlay"
                   aria-hidden
                   {...popper.attributes.popper}