Expand dmx universes to Eos Programming wing

No, you could instead use a third-party sACN or Art-Net node, or use an ETC Gadget.

the answer has two components:

-license: you need a license. this tells the software how many DMX addresses can be output.
-physical output: this is the hardware question. if you want to add outputs through USB you will need to buy the ETC product because USB drivers are not standardized between manufacturers. it's called Gadget II. if you want to output through network you can use ETC products or 3rd party products that support sACN or ArtNet network protocols.

If I understood correctly ... then .... is this correct?

you can mix all types of outputs. the local ones, gadgets and networked ones (by ETC and others). you can also assign the same universe to more than one output if that's simpler for your cabling (e.g. instead of an opto splitter)