This is why I am asking your advices
Anyway, this will apply only to new pages. I mean not forumhome, nor forumdisplay nor showthread. Regarding the fully dedicated page it would still be there.
And for vbAdvanced, I rather plan to make an addon for my chatbox which would allow to place the chatbox in the middle or on the side as both wouldn't require the same graphical design.
Why I am asking that pool is because the second option would require quite a lot of templates modifications as you would need to edit many templates to add a single line of code. This is not the easiest way for installation but the easiest one for own customization.
I'll see what users would prefer and will adapt the way I have actually made it in the current version under development
As the progression is going well, I think I'll maybe release the new version at the end of the weekend and then will fastly work out the vbadvanced addon (if the chatbox is in a global var, you will be able to temporarly use the on all page functionnality for that purpose).