Hi, if I want to create some blocks (for example, each block represents an electronic component) in SolidWorks, should I do it in a part file starting from a sketch, or in a drawing file? I tried and found out the former one is more easier to edit the blocks that I created. However, when I inserted a block into a drawing file, all dimensions appear and are very annoying.  How can I hide these dimensions and call them back when I need them? Thank you very much in advance!

Btw, if I want to print out a sketch, how can I center it in a letterhead size paper?