The measure count is a handy feature, but when you are far into a score, it's sometimes easier to have a visible count from the preceding rehearsal letter, particularly when determining where to place system breaks when you have repetitive bars.

I use a separate staff with text-based numbers in each bar.  Each bar consists of hidden rests with a text-entry number from 1 to n (n is the number of bars in each section).

Usually each section will be a standard length, after the intro.  Create the first n bars, finish the n-th bar with a double bar line, then just copy/paste the section until you have enough to carry you through the job.

Display while editing and previewing, hide when printing.

In case anyone's interested, I have a very low-tech way to see where I am when enteringparts for the purpose of practice.

Following an earlier suggestion (Sorry - I forget by whom), I tend to enter the lyrics for the part I'm entering before the notes. In order to go back and edit the inevitable typos, I make sure to hit ENTER before typing in the text for a new system. Since I tend to be entering baroque of classical music, the lyrics do tend to get repetitive. This makes it still hard to see where I am, so each time I get to the words on a new page, I prefix the first word with the new page number. It ends up looking like this:

si-cut e-rat in prin-ci-pi-o
11in prin-ci-pi-o etc.

I do something similar except I keep both the numbered text and un-numbered text in the lyric area.  When all mistakes are taken out, I copy everything to the clipboard where a script, envoked with a shortcut key, strips off all digits.  This is pasted in front of the numbered text.  If I can use (most of) the text in another part, I copy the numbered text only.