I am trying to edit some notes an other elements of the score get in the way of me selecting a note (see video), This often happened when I start adding system or page breaks.
How can I get rid temporary with all of them so I can freely select notes that crossover with them?
I can’t see your video, but if you’re mostly referring to signposts, you have various options, including:
Shift-Alt/Opt-click to cycle through selecting different, overlapping items (ie each time you Shift-Alt/Opt-click, another item in the stack at that position gets selected)
Navigate the selection from elsewhere
I’ve come across this issue a number of times, particularly when I’ve needed to alter some aspect of an element in a signpost (for example manual staff appearance, or staff condensing) but had a tempo marking in the exact same spot which keeps interfering with my attempts to activate the signpost.
I can get the signpost highlighted without affecting the tempo (or other) marking that’s behind it in most cases, but I can’t seem to actually access the signpost. Pressing enter starts playback!