Ansible Tower vmware inventory not respecting source variables

Hello All,

Tower (trial): 3.8.0
Ansible: 2.9.15

I'm having issues with vmware inventory not respecting source variables, I've been trying to get it working correctly for 3 days now. According to this doc https://docs.ansible.com/ansible-tower/3.3.4/html/userguide/inventories.html#vmware-vcenter
the source variables will overwrite the defaults. I dont like the default behavior of syncing all vms and grouping by guestId. When adding a host filter and group by variable in my vmware source "source variables" it doesnt do anything and continues on with the default settings. I also came across this solution https://access.redhat.com/solutions/5190981 which didnt help either after testing. A couple other things i have tried is, edit the vmware_inventory.ini file on the ansible box. Create my own vmware_inventory.yml file, both of which failed.

Im trying to simply understand how to filter the vmware sync, specifically only capture linux VMs, i also want to check for a specific vm tag if possible. Oh and also setting the alias pattern as well.

Sadly all the documentation is either vague or incomplete. Any help is appreciated. Thanks in advance.