Alias are mnemonic names for GPRM registers. The Alias table is saved with the project.
You can change the Alias directly in the GPRM table
Simply double click on any item and type the new Alias:
You can use both in the code - the GPRM name and its alias:
GPRM3 += 2
LoopPoint += 2
Alias definition in the code
You can also change the Alias table directly from the code. This is a good way to make sure the Alias table is always set correctly.
The best way is to add the ALIAS before any block
ALIAS GPRM3 LoopPoint
PRE "Menu 1"
LoopPoint += 2
...
Alias name is not case sensitive.