Is it possible to change a cap's configuration once it's been provisioned by CapsMan?

I've been playing around with CapsMan in a lab, and I've gotten CapsMan to provision the cap, however I don't see any way to change that configuration, other than making a new configuration profile and powercyling the cap...

Are you having trouble editing the existing configuration?
After adjusting it, it will be provisioned.

Yes there is.

You need to change your provisioning profile and remove 'dynamic'.
So change it from 'create dynamic enabled', to just 'create enabled'.
Then remove the interfaces and re-provision.

Now you can edit anything you want on the interfaces after they are created.

You don't actually have to create configurations and provisioning in capsman, you can just create a cap interface
viewtopic.php?p=933264#p933264

I guess I'm a bit confused.

Assuming I have multiple CapsMan configurations created, it seems that when I connect a new cap, it always loads cfg1 (the one at the top of the list, it seems).

How do I select the configuration that I'd like the new Cap to use before I actually connect the cap to the network?

In /caps-man provisioning section create specific provisioning rules. And set radio-mac=xx:xx:xx:xx:xx:xx property matching the "special" CAP device to use particular provisioning rule. It seems that it really needs to be specific MAC address, no wildcard/mask is accepted. MAC address to be set in radio-mac property is the MAC address of CAP's wireless interface (if CAP has multiple radios, you can/must use multiple provisioning rules to provision all radios).
Mind that provisioning rules are evaluated top-to-bottom, first match executes. So make sure that device-specific provisioning rules are higher than the general ones.

My CAPs are always dynamically provisioned. Sometimes some configuration changes will cause the APs to reprovision right away automatically. Some changes don't so for these instances I do this to force all CAPs to reprovision right away.

/caps-man remote-cap
:foreach wap in=[find] do={provision $wap}

I'll throw in another command I use to force channel reselects with an optional delay to try an give APs the chance to chose a new channel without another AP trying to compete. Mikrotik probably added the option recently to randomise the time range reselect for the same reasons.

/caps-man interface
:foreach wap in=[find where master-interface=none ] do={reselect-channel $wap; :delay 60s}