Setting default AC Version to open .pln - Mac OS

[Stress Co_]

Since installing the demo version of AC15...
I can't reset the default application to open .pln files.
The default is AC15 and I want it to be AC13.

Using "get info"> "Open with:> selecting AC13> change all
always reverts back to AC15

I'm not sure if it's a Mac OS problem or an AC problem
Can anyone confirm/repeat the problem?
Thanx
Marc

[Thomas Holm]

I won't dispute that. But of course, there are other ways to find the right apps than using the Dock. Like navigating through the Finder, conventional aliases etc. More work, but no tinkering.

But that's really beside the point. The issue here is that because of the way Graphisoft has chosen to (or not to) utilize MacOSX's versioning and file-to-app binding, this remains an issue for users. THere is a real risk for unplanned version migration if you're not aware of these issues. And since unplanned version migrations can cause severe problems, especially in a multi-user environment, I'm careful not to recommend any other procedure than to make sure what program version you're opening and then open the work files.

David wrote:

Thomas wrote:

Digicat wrote:
Indeed, the tried and not-so-inconvenient method....

Well, since several versions have identical default icons, for this to be safe it requires that you've tinkered with the app icons too, something not all are comfortable with.

The user has the same issue if opening the correct version of ArchiCAD first, then navigating to the .pln file: they have to know which icon to click on to open the correct version.

David