[MapProxy] Tile source

[Petróczki Imre]

Dear MapProxy,

I have a source and its type is tile. I made a layer and set the value
of its source to my tile source.
I got an error: my source "does not support un-tiled access".
I know that i would make a cache with this source and then set this
cache to my layer and it would work but i don't want to store the
tiles. How can i make a layer that uses my tile source witthout
storing any tiles on the disk?

Thanks!

Imre Petróczki