Hi, I use Build Dynamic Ram a lot, at the moment I have 2 options that I know of - Tools _Build Dynamic Ram or a keyboard shortcut (I have Alt+B set for this) but I mainly use my mouse so a script button would be good.
There is no scripting option for "Build Dynamic Ram". Basically, you'd need a script that could emulate the keyboard and press "ALT-B" for you. May be simpler to just press ALT-B.