Creating a creature - Learning the hard way

[Vampyre]

Hey all,

I recently started to seriously use RW and HL, which I had for years, but had never truly used them. Now that I'm getting a hand on RW, I got to a point where the players will meet their first fight.

And I told to myself, why not use HL for that. So... My first try got me trying to create a Creature inside of HL (not the editor, just the common program). But I met issues doing it that way. For the most part, I could create the creature. But so far for custom attack they do have (they have a claw attack, that does no damage, but on success, it means the bug does something special). I got an error, but I could deal with it (select type). Since it is a fully custom creature, and not based on anything present in the rules, I quickly figured out it was not the way to do it.

On my second try, I fired up the editor. Once more, I was able to create the creature, but once more, I failed to find out how I could link with the hand melee weapon I also created in the editor (the claws).
--> Do you know how I should do so that the creature I'm creating also have the claw weapon I created in the editor ?

I tried going further, but the creature never was complete as I've created it on paper. But I wanted to better understand HL. So, I created 3 of those, and put them in a portfolio, which I then linked within RW. But all it does is giving me the stat blocks on these 3 creatures.
I would like to be able to track down their stats while the players do fight them. I suppose I need to go with the encounter editor. I tried to do so, but since I've yet to create the characters for the players (we're not playing yet, and therefore they have yet to create their characters), I don't know how I should be saving the encounter in order to not only see the stats within RW, but also be able to track down the encounter in play.
--> Could you lead me to how to do this ?

Last question, I am a tabletop player, not playing online, but playing face to face with people.
--> Can I track the stats in the encounter, based on what they actually roll in dices in real (and not rolling inside HL)

Many thanks for your lights, it is much appreciated !

Best regards,