Thought I might pass this along. I moved form a TF-100 to the TF-300 and there is an app on the market call Reboot2Recovery, it's built for TF-100 but works on TF-300 great with CWR. Link to playstore below if you want it.
https://play.google.com/store/apps/...sMSwxLDEsImNvbS50cmFuc2Zvcm1lci5yZWNvdmVyeSJd
https://play.google.com/store/apps/...sMSwxLDEsImNvbS50cmFuc2Zvcm1lci5yZWNvdmVyeSJd