Programming for multiple robots in a cell requires one of the following license add-on modules:
Multi-robot sequential programming
Allows multiple robots in a single cell to operate one after the other, in a sequence. Robots cannot perform operations at the same time.Multi-robot simultaneous programming
Allows multiple robots in a single cell to perform operations at the same time. This license option includes multi-robot sequential programming capability as well.
You can view licensed options in Robotmaster by selecting Main Menu 
> About.