Here is a quick tip for you - there is a quick and easy way to use stationing within MC1 v7 - use autostationing.
With this enabled, MC1 will select the stationing line closest to your toolpoint for you.
This video features Leica Machine Control MC1 version 7.
Contents:
00:00 Model options
00:39 Autostationing in action
(Leica Geosystems Machine Control Academy project ID 164XA-01)