Five revealers in one column leave every section short of room once the trigger, cursors, measurements and math panes are open. The design splits the column into two tabs, folds the math list into the signal list -- the two were the same list drawn twice -- and makes a feature's toggle disable its pane rather than hide it, because a tab cannot carry an on/off. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>