Hey guys , I want to pick your brains on this..I am struggling to achieve.I need to make a timber block which has some attributes say its size and when I call this block it automatically changes its name as a next integer ( say in the drawing there are Timber_1 and Timber_2 then new block would automatically be Timber_3) and I want to make it dynamic so I can change the size .at the end I would like to make  a schedule by data extraction.Howz this possible.Any advice will be highly apprciated.