j edited my response a lot after thinking more:
1 .we could add a new location "extra dimensional" on the location dropdown, i usually use "not carried" which is sufficient for encumbrance purposes., but people might want to differentiate what they actually don't carry, vs what they carry but is not counted for weight. just have to figure out an abbreviation for the tabs.
2. we want to add the ability to label the two 'other' tabs, we can't in the dropdown since roll20's interface won't allow dynamic dropdowns, but we can at least add fields above the list that allow the other1 and 2 to have different names. however, the width of the tabs can't be dynamic (we had them once at version .5 but for about 20% of users it caused the tabs to freeze, we nor roll20 could ever reproduce this, and the devs verified our code was valid and should work)
3. we could subtotal each tab..we can try it in beta and see how it affects speed
4. i use the short description for location in particular bags..but it's the same issue as 3 for totalling, our main concern is speed. but we could try it. technically it doesn't affect speed if you are not making changes, or hitting recalc. it just adds more code ..
right now our highest priorities are:
bugs
token bar setting speed
speed of updates on the sheet
speed of campaign for GM with lots of characters (this is the hardest)