-scry command won't work during the scry cooldown. It includes:
-scry ?
-scry <timer settings>
There's also feedback "Invalid of inaccessible command '-scry-. Type -help for a list of commands." I think what should stop working during the cooldown is the actual scrying, not information about the command or setting preferences.
When setting preferences, sometimes I am having a cooldown triggered. e.g. -scry 1min is attempting to scry on someone named "1min" and then fails, so triggers a cooldown.