You're displaying the whole device info using the HubConnect RM Connect driver.. and that's correct and matches... but I displayed the lower portion: the Device Info portion, because the top portion is 'busy' -- the only portion that matters in the top is the part you didn't capture.. the Current States part there on the Right side.
On the "real RM Connector" hub, there's a Set Variable button and string entry. Type something into the String field, click the Set Variable button above. Look to the right, the Current States should show your typed word(s).
There's the same on the bottom left area of the mirrored device. The Current States should have the word(s) you typed and if you type a different word in the Set Variable string field and click Set Variable, again, the Current States on both hubs should follow along.
The Commands portion of the HubConnect RM Global Variable Connector device will have a button for every type of Global Variable RM allows you to create. But recognize that the original Connector is ONE type. The mirrored device will be one type too but it can't know in advance which, so the HubConnect driver has "One Of Each" to cover all the bases. 
