eDrawings Pro for iOS: Measure tool usage

Hi,

what is reliable procedure to display measured info about point, edge or so? I can see cursor, select object which changes color red or green. But I'm spending plenty of time to persuade program to display info box. There is probably some delay digging data without any "hour glass" indication that is in progress. So I need many "trial/errors" to reveal data box.

How to measure X,Y,Z distance between two points not connected by an edge ?

How to measure X,Y,Z position on edge or hole ?

Thanks in advance

SolidworksEdrawings