Hello I am having trouble installing arm_Lib. I assume this is the controls and joints plugin. I have the UI plugin MSPhysics 0.2.1 plugin, and I have msvcrt-ruby200.dll as I assumed this was higher than msvcrt-ruby18.dll. I have Sketchup Pro 2014. Any thoughts on how to fix this?

I am looking for a plugin or method for selecting multiple ungrouped entities (eg. with the same geometry). I have some metal platework with many holes. On revision, I wish to change the hole centres and hole sizes. Normal practice (for me) would be to close the circles, front and back, and erase the lines to enable me to redraw the holes. The redrawing is easy, but the circle face closing and erasing is tedious work. Any suggestions?