I have a different idea...
how about one new button to toggle between "Bar Mode" and "subBar Mode"
(boolean instance variable for Textbox: subBar_Mode-false)
and another button(3 instance) to "Activate" specific subBar...(similar to mothButtons and Bars)
so..if Textbox is set "subBar_Mode-false" you add Textbox value to Bars...
if Textbox is set "subBar_Mode-True" you add Textbox value to subBars....
and you don't need new Textbox(or two)...
What do you think ?