I'm wondering. On servers in the hub on the sidebar they have a scoreboard and it's displaying multiple things. Like on Mineplex it displays the server there on, how many gems they have, how many coins they have, what their rank is and the website. How do they do this? all i can get it to do is display one objective. also i'm on 1.7.10.
In terms of servers like Mineplex, they use plugins to create the scoreboards rather than command blocks, but the same approach is taken.
At the current moment it is not possible to display two 'objectives' as such. Instead, you must use fake players as objectives instead.
For example, if you wanted to have two objectives, distance walked (cm) and distance flown (cm) you would have command blocks on a loop (clock) with these commands:
/scoreboard players operation WalkDistance Scores = Sulphate Walked
/scoreboard players operation FlyDistance Scores = Sulphate Flown
In these commands, 'FlyDistance' and 'WalkDistance' are the fake players, 'Scores' is the scoreboard title, and 'Sulphate' is the player name. 'Walked' and 'Flown' are the scores being tracked.
Hope this helped!