Managing blocks in Draftsight free version

Hey :)

I have a free draftsight version and I want to manage the blocks created. In AutoCAD I once created a tool palette where it was very easy to organize the different blocks and to choose which one to put together. I hope you understand what I mean. The idea is to have a little picture of each block and then you only need to click on it to place it on the drawing. And it would also be good to organize it like folders. E.g. when you use drawing-version A you then have the choice of placing part E or F. If you choose F you can choose... and so on. The goal is to make it easy for everyone to create a drawing of some different versions of the machine.

Thank you in advance.