question about setting
 

So i noticed that there is a option to turn on settings for the unearth arcana, does that mean that there is a setting that will let you gestalt, if there is not does anyone know how to make the editor make one

There's not a setting to allow Gestalt. You can use the editor to make a Gestalt class - it can be a little tricky and time consuming, but worth it, IMO. There are some combinations that HL simply cannot handle - specifically, any combination involving two spellcasting classes.

The best way I've found so far to make one is to choose one class and make your Gestalt an archetype of that class. You then add all of the abilities of the second class to the Archetype.

If either of your classes is a caster, you should make your Gestalt an Archetype of that class.

You'll almost certainly need to reassign some of the abilities of your second class as secondary or tertiary (or even quaternary) in order to get HL to recognize them. This has been the most time consuming (and sometimes the trickiest) part for me.