I know that there was already many discussions about icons in TB, but a small and very usefull improvement can be added without problems I think :
We already have a "Paste icon" option (Pro version), can we consider to add a "Copy icon" option ? (Might be Pro too)
When you add new child to a node and many of its "brothers" have already a defined icon, allowing to copy icon from one of them can save a lot of time.
French user - TheBrain 7 beta.