Quote from: ingvar_e

- Where do I specify the actual command?

In the console tab (Help->Debug Window).

Quote from: ingvar_e on November 05, 2019, 09:59:15 AM

- importwallet "filename" I assume that "filename" is the actual wallet xxxx.dat

That's the "filename" that you specified in "dumpwallet" command.
The directory/path can be indicated as well depending on the location (read the documentation from the link above).

BTW, you need to unlock your wallet using walletpassphrase YOUR_PASSPHRASE 300 before proceeding (300 is the unlock duration in seconds).
Also, backup your current wallet.dat(s) before proceeding.