You can import device-specific MIBs into the SolarWinds MIB Database, but you cannot import UnDP pollers based on OIDs from device-specific MIBs.
You can import device-specific MIBs into the SolarWinds MIB Database, and you can also import UnDP pollers based on OIDs from device-specific MIBs. UnDP stands for Universal Device Poller, which is a tool that allows you to monitor custom statistics based on OIDs with NPM. You can create UnDP pollers by selecting OIDs from the MIB Browser, or by importing them from a file that contains OIDs and poller names. You can then assign UnDP pollers to devices monitored by NPM and view the results on the web console.Reference:
Monitor custom statistics based on OIDs with Universal Device Pollers in NPM - SolarWinds
Import Universal Device Pollers - SolarWinds
SCP Study Aid - SolarWinds(page 7)