Can I import a Subcontract that is signed outside of PASKR?

Yes, you can. First the you have to go through all the steps outlined in Creating a Subcontract up to the point of Locking the Subcontract.

From the Left-side Menu click Briefcase > Contracts > Import (next to the desired contract)

Briefcase_Contracts

Click Import next to the contract you wish to Import

Import Subcontract

Browse your computer to find the Contract>Import

Import

After importing, Paskr will treat the subcontract as if it was signed in Paskr.