Can someone walk me through the process of making a new lua file with the editor?

I cant figure out how to tell the script to skip parts if the conditions aren't met, spent all day trying and i cba trying anymore so yeah, if i could just make a new lua i could get the scripts that move onto % based code work. Iv used Mend.lua for Mend 1 and 2 but Mend 3 to 5 use % so after fixing that code iv just used a redundant lua for the brawler until i can make a new lua with an actual name that relates to the spell in question.

I know its not the best way to do it but im a n00b at scripting so to avoid complex scripting (or avoid leaving these % ones for you lot to do) it might be faster just getting new lua files.

If it cant be done in the editor, could john or anyone with access to the db do it for me?
Here's a list of the ones i need.

Spells/Fighter/Brawler/Monk/ Spells/Fighter/Brawler/Bruiser/ Spells/Fighter/Crusader/Shadowknight/

Ill update as i go until im able to create them in the editor :p