Size of panels of sort tabs are hardcoded in VSortTab :
yesPane.setPreferredSize(new Dimension(200, 300));
noPane.setPreferredSize(new Dimension(200, 300));
That could be nice to allow an increase.
I don't think that hardcoding it is a good way (if you're using low resolution screen).
Could it be done in AD_SysConfig (default would be "200, 300"). People could easily increase it.
Another idea is to give the whole space of the tab to the panel (or both panels). This idea should be reviewed.
I've try to test your suggestion, but i can't find what property can be used for maximising dynamically the yesPane and noPane.
And thinking about using AD_SysConfig is not so good as this kind of tab is used by System Admin for positionning fields on windows, but also by final users for managing reports.
Your idea sound good, but it would imply to redesing the panel, no ?
Labeled as potential idea - closing - lack of community interest