we have been using various myob programs now for 29 years we recently changed from premier 19 to account right - its like watching the grass grow! soo slow we have had out IT guy go over everything...
Try using keyboard shortcut CTRL-J. I use this constantly throughout the day.
Here's a quick list of common ones I use
Enter Sales - CTRL-J
Receive Payments - CTRL-B
Enter Purchases - CTRL-E
Pay Bills - CTRL-M
Cards List - CTRL-F
To Do List - CTRL-T
Find Transactions - CTRL-Y
(this one depends on which Command Centre in the background you're on to where it will land but you can then click ALT-N for instance to go straight to Invoice without having to use your mouse). Look for the line under the letter and you usually do ALT-? to go there.