Deactivating last command shortcut?

 From:  3image
8154.1 
Hi there,

Clicking RMB recalls the last function used in MoI3D. This is indeed very useful, except - for me - in one case: If the last action was pasting data in the scene RMB will re-paste the data which leads do double geometry that overlaps with each other. So my question is: Is it possible to deactivate RMB for pasting (maybe also copying) data?