If your recording has a perfectly consistent tempo — like if it was recorded to a metronome — then you don’t need to manually create each syncpoint.
Instead, just create a syncpoint at the beginning and at the end. Double-click the second syncpoint and type the word ‘end’, followed by the Enter key. This will automatically create a syncpoint for each measure of your music, evenly spaced.
Note this will only work if your slice has notation. Otherwise Soundslice doesn’t know how many bars your music has.
A variation of the above shortcut is to double-click a syncpoint and type a number followed by the Enter key. This will automatically create syncpoints within a desired range, like 10-16.
The basic idea is: You can always double-click a syncpoint and manually specify its bar number. If this results in a situation where certain bars don’t have a syncpoint yet, Soundslice will automatically subdivide the space, creating automatic syncpoints between your manually-created ones.