Is it possibe to refresh a PDB from a NON CDB in Oracle 12.2 ?

We have a Non Container database hosted on existing X-3. We created a PDB on one of the containers hosted on X-7 using Online Remote Cloning Feature introduced in 12.2

Now, we want to refresh the newly created PDB time and again from Non CDB, is it possible in 12.2?

I know that Refreshable PDB feature was introduced in 12.2 with Automatic and Manual option, but as per myunderstanding that's possible between the source PDB and target PDB. Not possible between Non CDB and PDB on different machines. 

Please share your thoughts if it is possible to refresh a PDB on X-7 machine from Non CDB on X-3 machine. Or everytime I have to drop the PDB and create a new one with Remote Cloning over DBLINK.