Tvheadend

Please implement the feature allowing to import/export muxes&channels between tvheadend instances.
Lets say that you have several tvheadend installations in several locations, even using different hardware, but all of them receiving the same DVB-S satellites.
It is hard to maintain all of them, especially when there are a lot of changes on transponders.

Having such feature, I imagine that maintining them would be much easier, when several conditions would be met:
1) all instances should have same "networks" assigned to proper tuners.
2) tvh should allow to export just one network at a time

After exporting and importing such settings, TVH should automatically add previously exported muxes and then map channels like in source.
Of course, muxes/services/channels belonging to exported network should be purged first.