ohlin: I have no idea what you mean by Abilities/Appearance option and, or how to make changes.Could you be a little more explicit for a non tech person
On the PC app, click on your profile pic (upper right corner of the screen), then click the EDIT APPAREL button at the bottom. That will bring up the MY APPAREL screen. On the top right side of that screen, you will see 2 tabs: abilities and appearance. The appearance tab will be locked if you haven't paid 500 credits to unlock it.
You can make changes to your apparel by clicking on the icons just below abilities / appearance, selecting an apparel item that you own, and clicking the green EQUIP button.
Hope this helps.