The field selection pane in Multi-Field Formula is very small and not resizeable. It is difficult to select anything other than all variables when only 4 1/2 fields are displayed at a time. Making this pane resizeable would be very useful.
It would also be helpful to highlight multiple rows to make a selection like you can on many other tools rather than having to select each one if you were not selecting all
Please allow the user to resize the window that selects variables in the Mult-Field Formula tool. It's a pain dealing with a lot of variables and needing to select multiple variables in this window. Either make the variable box larger or allow its size to be adjusted.
Also,
I would also like to add an ability to adjust the size of the formula tool Output Column width. Very long field names get truncated and you don't have the ability to resize the output column to see the full variable name. It's frustrating, b/c it seems like you have the ability to adjust the column width, but it wont allow to go past a certain point See my pic example.