Today we presented two design options for a project via BIMx. In the past I would have waited for option two to load (an awkward 60 second pause), or created some clever layer option in a single BIMx file.
In my pre-meeting setup, I ran a quick test to open a second BIMx in a separate instance of the application. To do this, drag the BIMx application to your dock for each instance of ARCHICAD installed on your machine (17, 18, 19). Do not use BIMx for AC16! It is slow and glitchy or non-operational on our operating system.
To find each BIMx application go to you mac > Applications > Graphisoft > ArchiCAD V# > Add-Ons > BIMx, and drag each individual BIMx to your dock.
Next open each BIMx from the short cut, go to File > Open… You will then be able to open up to 3 separate instances or versions of BIMx files. In my tests, I can open a BIMx file created from AC19 in any of these versions. I have not tested this in reverse, opening a 17 or 18 file in 19; but I assume if a 19 file opens on an older version of the software it should work in reverse.
One final note, tabbing between instances of BIMx is as simple as using Com + Tab; so navigation and presentation goes seamlessly from one design option to the next. If you need more than 3 instances or versions, you will need to resort to the awkward loading/pause.