This actually should work. You just need to copy the content of the pem file to the private part of the key when copying it into Termius app in the Keychain section.
We’ll double-check it.
If you have any other problems please contact us here – http://support.termius.com/
Open your pem file with any text editor and paste it to add keychain page, which is your termius preference. Then you can select on adding host page.Anonymous commented
Still searching... How to add pem file ☹️