RangerXus - 2018-06-13

I've searched the forum and the Internet but can't get a clear answer.
Using MBR, VeraCrypt System partition. I need to expand it. I have free space on the drive next to the end of the System partition. Can I use VeraCrypt-Expander to add more space after I adjust the partition size?
It's not clear if Expander supports System partitions.
I'm guessing I will have to enter recovery mode so the System parition is not being used.