Ok I joined the Arena Now What? ok Here is a few answers:

Well first hopefully i have had a chance to give you a folder (theres a note card labeled  Arena Fighter Folder  which will tell you your folder.) with build sheets, character sheets, and a general note card for well notes. If you need more note cards don't be shy about asking for more. if you dont have a folder yet don't panic you will. Hopefully you still say hi to the other participants regardless.

After Finding the folder/when you have one. Open the character sheet. (please note this assumes your making a new character/ sheet/ build.). 

Then click the attributes and abilities tab

Then we do the add and edit tabs

If you hover over the end ofe the new ability and you'll see a pencil tab click that and you'll pull up the next thing. Copy and paste the macro into the larger field and then rename the macro roller. (In this case human stat roller). 

The rest of a basic character build stuff is in the other part of the campaign folder i suggest you take a look i did a pretty comprehensive break down.  Hopefully you have a paper copy or pdf. of the basic books or can borrow it ;-p

Beyond having a fighter,/ character/ business set up. The next step is to set up a challange/ talk to others/ help build interest and have fun. Whether here or in the discord channel. Everything is free form easy and relaxed talk to people talk to members of your other games bring stuff/ people etc. in As for importing stuff if its already in the sheet format set up for the room thats straight forward if its in other formats sheets you'll have to note card stuff and fill it in. there's a lot of different character sheet's out there this just happens to be the one that i use in the games i g.m. (yeah we could debate this sheet is better or that but for now this works so... Honestly  the arena is my attempt to give us all a fun diversion and possibly steady game if people want to help make it happen.