[Map] Adding new wild Pokémon - Offsets?

[Snowcloud1]

Hi there,

Sorry if this is the wrong place to ask but I googled this and even watched some YouTube tutorials but still didn't figure this out. Sorry if this is also a noob question but this is pretty much my first post. Anyways here we go:

So basically I want to add a new water area to a map but Advance Map 1,92 asks for offsets and I have no idea as to what to do (v1,95 seems to not even ask). I mean, I could try to find free space with Free Space Finder but I have no idea how much space the new encounters take (for Grass/Water/Fishing) so is there a way to figure it out or do I just leave everything empty and hit ok with Offsets 0 for both the Water/Fishing wild encounters added? Asking this because I don't want to overwrite stuff and have glitches or similar later

 

[Thabuffalo]

What's the problem exactly? advance map should just work, if you made your own map i forgot how to make it work but i believe it has to be done in the header tab, i may be wrong.