Here’s some of the information from Steinberg on Eucon update.
10 July 2016, Guillermo (support forum) wrote:
“We have already implemented the “Mixer mirror” feature/option but cannot be delivered on the current EuCon(version 2) adapter.”
“We are waiting for the delivery of the next EuCon(version 3) adapter. As soon as we support EuCon 3, this functionality (mixer mirror/track visibility) will be available & usable”
25 March 2018 Oscar (support email) wrote:
"Developers are working on it and some problem with Eucon’s devices should be solved with the next update or the second update from now,
16 September 2019 Oscar (support email) wrote
“I would confirm once time again Steinberg is interested in finding a solution to this problem and our departments are working on in order to understand this issue. However, as you know EuCon is owned by Avid and we do not have any access to EuCon directly and we have only the access our integration part.
These limitations are slowing all the bugfix procedure down. I am sorry about it”
Doesn’t say much really, other than “sorry but it’s not going to happen”