Final answer:
The button that lists all procedures in the system in an appointment information dialog box is typically labeled as 'Add TX' or similar, which stands for 'Add Treatment'.
Step-by-step explanation:
In the context of a software application used for managing appointments, including scheduling medical or dental procedures, the button in the appointment information dialog box that lists all procedures in the system is typically labeled as Add TX or something similar, which stands for 'Add Treatment'. This button allows you to add procedures or treatments to the appointment. 'Misc' might be for miscellaneous options, 'Initial' could be for initial appointment settings, and 'Other' might be used for additional non-procedure-related settings. It's important to refer to the specific software's user manual or help resources for accurate information since interface elements can vary between different systems.