I would like to know if there is any way that I could navigate a pdf by sorting spaces by space name rather than page label?
You can sort the markups list by any column in it by clicking on the name of the column. You'll see a thin blue line below the name. That blue line indicates the current sorting choice in the markups list.
@Lee Pellegrin , you can sort your markup List by space, and/or, you can use the Spaces section and navigate that way.