I think you’ll find an answer to most of your problems in this post from the PEX 2.0 topic:
This topic might also help:
As a side note:
I know that most other forum software have bad search functionality, but Discourse (the software used on these forums) has a really good search function, with which I found both of these in about a minute. I recommend you try that the next time you need some help - if you open the search bar inside the PEX topic, there’s a button that will make it search only inside that topic. Having existed for more than a year, these forums are a well of information