In order versions of IPB it was possible to have several tabs of the ACP open in newer versions for security I imagine this was changed so you can only have one ACP tab open at a time. This is very frustrating to me for example I work a lot with IP.Content and I need to jump to a template bit to see how IPB references a skin variable I need and to do so I have to save my IP.Content file, go to the Skin Editor, find where the skin variable is, go back to my IP.Content and repeat across all of the features.

I think it'd be helpful if when your board is in IN DEV if you re-enable the ability to have multiple ACP tabs open.

I have multiple tabs open in by browser to the ACP everyday. Not sure what you mean? I could he missing your point :)

I also often use multiple tabs in the ACP without issue. Are you trying to log in to each one separately? Log in once, then open tabs from there as needed.

What browser are you using Peter?

You have to open the new tab from your current so it has the same session ID (i.e. right click --> open link in new tab).

It won't work if you open a new tab, go to the ACP and login again.

Weird... Maybe Chrome just hates me. Yeah if I open a new tab and then navigate in that tab, then I switch back to the first tab it kicks me back to the login screen.

Could also be a proxying issue