AIR automatic version number in ExhibitDescriptorTemplate.xml

Hi,

I'm quite new to IntelliJ IDEA, but loving it for actionscript development.

I'd like to know if there is a tool/plugin that could automatically update the versionNumber of my Exhibit Descriptor xml.

Could someone point me in the right direction please? I'm using v13.0.1

Also, any general tips on customising the build process would be appreciated.

Thanks