Hello, I'm trying to sort a list of combined letters and numbers so that they appear numerically in ascending order. Here's how the regular sort option sorts it now:

STG.L1
STG.L11
STG.L15
STG.L3
STG.L7

But I need it sorted like this:

STG.L1
STG.L3
STG.L7
STG.L11
STG.L15

Is there some code that can allow this to happen? Thanks!