Switching Development Environments

Is there any way of(easily) switching between a 3.2.0 development environment and a 3.1.3 one in the updated TiStudio?

i.e. It seems that once you upgrade to 3.2.0 that is it (if using TiStudio). If I select SDK 3.1.3 as the SDK then I get

[ERROR] :  Alloy 1.3.0 requires Titanium SDK 3.2.0 or higher.
[ERROR] :  "3.1.3.GA" was found in the "sdk-version" field of your tiapp.xml.
[ERROR] :  If you are building with the legacy titanium.py script and are specifying 
[ERROR] :  an SDK version as a CLI argument that is different than the one in your 
[ERROR] :  tiapp.xml, please change the version in your tiapp.xml file.
[ERROR] :  Alloy compiler failed
[ERROR] Application Installer abnormal process termination. Process exit value was 1

which I completely understand, but is there a way of switching/selecting this so it uses Alloy 1.2 when selecting 3.1.3 or is this a one way trip?

Given the problems I have been finding in a major Android app with 3.2 and being an 'indie dev' (don't have the facilities to run multiple development environments) does this mean sticking with the old version of TiStudio until the issues I have are resolved, or I code in patches for them?

This does cause issues as I have just upgraded to a new machine (and this only comes installed with Mavericks - but thats a whole new set of problems)