Changing the coxa offset in the Setup sheet to 15 deg mean that you also need to update “Limit angle values” in the same sheet. 15 deg offset also mean that when the coxa are set to 0 deg the coxa will stay in a 15 deg position relative to the X-axis.
What Up/Down button are you referring to? The Up/Down in the individual leg section move the leg up when clicking up. The Up/Down button in the “move actions” section move the body up when clicking up (this means that the leg move downward)
A little tip when posting Q’s on the forum is to use the search function first. I knew that I had read about this problem before so I simply made a search on “PEP csv semicolon”, then one of these posts came up:
Hope this helps.