fast grid minsize change via movable grid bars - AlfonsMittelmeyer/python-gui-messaging GitHub Wiki
Fast grid minsize change via movable grid bars
When the button above the label 'Columns' is pressed, the grid bar view appears.

When the mouse pointer is over such a bar, the bar becomes green.

After clicking on the bar it may be moved to another position.

And so the size of rows and columns may be changed very fast
