MacPorts vifm is at version 0.5.0 feature poor.
The current vifm is 0.7.2 and feature rich.
Please update MacPorts vifm.
There is a maintainer of vifm port at macports.org, which should know better than me how to do that. I'm not familiar with macports and Mac OS. Though I know there are some problems with building vifm from source and running it on Mac OS, which are not fixed yet, but I do know how to fix them.
I'm going to make a new minor release (0.7.3) in a week or two and will try to make it build and run on Mac OS without issues, so there will be no need for porting and you will be able to build it from source yourself. If you still want to have all newer versions from ports, you need to ask its maintainer about that.
By the way I think there is an alternative to macports, which is called rudix and includes latest version of vifm. You can try it for now.
I fixed compiling issues several months ago and was going to file a ticket to MacPorts, but saw that it's already present.
It was updated to 0.7.6 four months ago, just filed ticked to update to 0.7.7.
Closing the ticket.