[Feature] insertColumns without loop

[sinkcup]

I hope there is a function to insert columns without loop.

now

stateManager.insertColumns(0, [column0]);
stateManager.insertColumns(1, [column1]);
stateManager.insertColumns(2, [column2]);

expect

stateManager.insertColumns(0, [column0, column1, column2]);

[stan-at-work]

I would looking at https://github.com/doonfrs/pluto_grid_plus for a maintained pluto_grid_version

[stan-at-work]

@sinkcup Please create this issue in pluto_grid_plus. and tag me i will create the feature for you