Btc Recover help needed.

Hi,I swear I'm not a newby here but I am new to Btc Recover and I'm really stuck and you guys have got me fixed up before with my sloppy writing with my private keys from years back,Finder Outer figured them all out,thanks.

I found an old ETH Puzzle in my old computer files and checked and there still is a .1 ETH prize to win so I got Btc Recover installed but I'm stuck.

I have a 20 word word-list that I figured out and 4 of the seed word positions I want to"anchor" as I'm sure there right.

All I can do with Btc Recover is work the default 12 word setting(I put in my info) to check every combo of the 12 words I pick,479M combo's.Then when it finishes I take a word out and put a new word in and try again.

I cant figure out how to do it for a 20 word list with 4 words anchored,I'll just let it run all summer and see how it goes.

Can anyone help me ?

I can make the .txt file but don't know where it goes or the command to run it.

Thanks reply if have time.