What the heck is all-vlan? Is this a special function or pull down menu selection that already exists? Where is it found and what is its purpose? (I had assumed all-VLAN was simply a name given to an address list of all the vlan).
all-vlan is a special interface name that was already there before the "interface list" feature appeared.
so you select it in in-interface rather than in-interface-list.
This special interface should probably be migrated to a special interface list in RouterOS, similar to the "all", "none" and "dynamic" special lists.
"all ethernet", "all ppp", "all vlan" and "all wireless" are in this same category.
Making them a special interface list would be clearer, now that is possible.