questions. Dimensions in PDF Files. Default Save Locations. Linear and aligned measurements in Z

3 questions.

How do I include dimensions on a drawing as an exported pdf file?

How to change the default file save locations by file type? Such as, blocks always save to 1 folder, *.pdf always saves to a different folder, etc?

How to Measure in 3 axis at once? Think of a line from 0,0,0 to 10,5,7