Fill problem

Ok, I’m currently making some pixel art in fireworks, and I have come across a major downfall of it… You cant fill properly… What i mean is, like on ms paint, you can fill a box really easily by just clicking inside of it, But because I use the line tool and it isnt really a box ( not technically ) I cant fill properly. At first I thought I might just have to group all the lines together and then try to fill, but that didnt work… So I’m kinda stumped :frowning:
Any help would be appreciated :smiley:
Cheers
Blabj
Ps, some of my work so far… ( ive been doing this a day :smiley: )

and

And…

dont know anything about fireworks, but great work! i really like the guitar amps!