Update: 20 columns

[#1]

It can be time-consuming to update a table with column from another table.
Especially: to pick the right columns - if the user wants to add more than a few columns - and if there are dozens or hundreds of column in the source table.

For Big Class everything is smooth:

What cold help: Check Box Display  - the option for the Data Filter.
Is there a hidden setting to activate this mode for a Column Filter Box?

[#2]

A significant improvement in JMP19: 
Together with Have data filter selections not clear when you need to enter a new filtering item
the new mode is also implemented for column menus.

But still, to select more than three items, some mouse and keyboard acrobatics are needed.