Wait for Text Playback

This option is to be used immediately after a Text command, such as the Text Type function. Wait for Text Playback prevents the macro from continuing until all of the text has finished playing back.

Script Editor > Expand Timing Category > Wait for Text Playback

Wait Indefinitely

With this option checked, the macro does not resume until the Wait For action specified has occurred. 

Wait at most

With this option checked, the macro waits the number of  hours, minutes and seconds specified for the Wait For action to occur. If that action does not take place within the specified time frame, the macro takes the action selected in the On Error tab.