Many airline staff can see the loads of more than one airline. If that is you, add those airlines to your profile.
Open requests for the airlines you add then appear in the 'Requests' tab, alongside requests for your own airline. That gives you more requests to answer, and more chances to earn credits. It helps most if you rarely get a chance to answer requests for your own airline.
You can add up to 10 additional airlines. Here's how:
Tap the 'Menu' tab at the bottom right of the screen, then choose 'Profile & settings'.
Scroll down and tap 'Additional airlines'. Tap 'Add additional airline', search for an airline whose loads you can see, and tap it to add it. Repeat for each one.
Your own airline and the airlines you have already added still show up in the search, greyed out and marked 'Your airline' or 'Already added', so you cannot add one twice.
Once you reach 10, the search field reads 'Maximum additional airlines reached'. To swap in a different airline, tap the cross next to one you no longer need.