Printbold help needed!

[Tally]

So i have to make entirely new .gsc file? Like _welcomemessage.gsc?

Yes. You could put it in any of the stock files, but it is best to learn how to create your own files and put them in your mod.

BTW - a sign of a good modder, someone who has the aptitude for modding is someone who takes the initiative. Don't ask first, do it and find out. If you then run into problems, go to a forum and ask. But always try something first before you ask. I learnt from mod forums like this, but I rarely asked questions. I just jumped in the deep end and tried swimming.