multiselect columns to drag and drop into the y_axis field

**Is your feature request related to a problem? Please describe.**
I can only select one column at a time to drag and drop.

**Describe the solution you'd like**
Maybe hold shift to multi-select several columns? Or any implementation, but the end goal to be able drag several dozens of columns in one move into the y_axis box

**Describe alternatives you've considered**

**Additional context**

Locate the existing column drag-and-drop and y_axis UI, then read how a single column is selected and transferred. Implement multi-selection so several columns can be dragged into the y_axis box in one move, and verify that dozens of selected columns are accepted together.

Written by the indexing model from the issue text.