For what it has, in my opinion, Plasticity, unlike other programs such as Solidworks, is sadly lacking in the interface it presents to the user. While the 'F' key works to display commands, it's really a bit of a quick solution rather than being the type of interface we have come to expect that other programs use in operating systems such as Windows. Having to remember a whole host of commands when you bring up the 'F' menu and/or store them as an icon in favorites is not the best solution, although it is a solution of sorts. I know the Plasticity team is small, but there is a definite need to engage an interface designer - somebody who knows how to design an interface and its icons - that would make Plasticity better for the end user - people like you and me. Plasticity is growing in both capability and the size of it's command base. I think that the current interface will eventually reach a stage, if it already hasn't done so, where the use of the 'F' popup will no longer be the efficient way to go. It seems to me that it is starting to reach that stage already as more and more commands are added with every update. As humans we see and understand with our eyes, and icons make the process of 3D modeling a whole lot easier.