You have a couple of options in QA Wizard Pro.
1. Use the delay statement. Example Delay(5000) this will wait for 5 secs and then continue on to the next step.
2. You can use the strDoesExist = Window("WindowName").Button("ControlName").WaitForExists(5000) this will wait for the set time and return a value to indicate if the control exists or not.
You have a couple of other options in the solution, add a new statement and type in the word exist or delay to view all the options available.