The batch editing feature of RD Tabs had a bug where when you cancelled, it would still apply the values as if you clicked on "OK." This has been fixed in 2.1.16. Links and changelog below...

Download links...

x86 MSI: http://www.avianwaves.co...rdtabs/rdtabs_2.1.16.msi 
x86 Zip: http://www.avianwaves.co...rdtabs/rdtabs_2.1.16.zip 
x64 MSI: http://www.avianwaves.co...tabs/rdtabs64_2.1.16.msi 
x64 Zip: http://www.avianwaves.co...tabs/rdtabs64_2.1.16.zip 

Changelog...

- Fixed a bug where if you cancelled changes while batch editing, the changes would be applied anyway (as if you clicked on OK).
- Added breadcrumbs to the "create new tab" method to catch any strange exceptions happening there.