My proposition is to make coding blocks in trach menu. There will be tabs for example:

-logic(if, while, until, forever, repeat <count> times, and, or, nand, nor, etc)

-actions(go to<location>, pick, put, etc)

-variables

-math

-sensors(narest [tree] location, narest [battery low robot] location, etc)

And so on. 

[Option] - dropdown menu

<> - input

Wish that will help ;)

Yes we have been thinking along the same lines :) Thanks!

But if you want to keep the "Teach by watching aspect", you could have it so each bot has the specific action or sensor locked until he sees you do it, then you can select it in the menus all you want

Similar to the MIT Android App Builder