Resolve Lite: Customising Express Keys on the Wacom Intuos 4

Hello,

I want to map certain functions in Resolve Lite on to the Express Keys on my Intuos 4. Specifically stuff like:
Reset Base Memory (which is SHIFT + Diagonal Arrow)
and
Disable All (which has no key combo listed)

Any suggestions / help would be welcome,

Thanks,

Sandeep.