Credentialed Scanning - F5OS - Rseries

After solving the remote authentication issue previously with F5OS. My next question is related to credentialed scanning on R series appliances running F5OS. 

The tenable agent logs in via SSH and tries to run commands in the shell to pull system information. This has never been on issues on the iseries appliances and BIG-IP guests as they allow uses directly to the shell upon login. All linux commands run as intended. 

F5OS is a new beast for me to understand as it dumps you into its own OS. The shell is protected and only root at the local level is allowed access to the linux shell. This is the issue I face with credentialed scanning. Authentication works perfectly fine but the ability to run the proper commands at the appropriate level seems to be locked and it doesn't appear I can grant shell access to remote accounts. 

Anyone have any experience running authenticated scans on their rseries appliances with f50S?