How to unlock the ButtonBar

[m^2]

Actually the whole 2-row thing under both panes is just 1 buttonbar, TC wraps "too long ones" and with some tweaks it can look as you see. The only way to manage position is adding / removing buttons. If you want to remove redundant buttons, just delete them and in the rest's properties change commands, cm_RightLong->cm_SrcLong etc.