By default, ACE Meetings offers you 3 options: 15-minute, 30-minute, and 60-minute meetings. But what if you need more or less? Well, that's easy enough! You can set it to any custom length of your choice.
All you have to do is scroll down to your availability section in the Meeting Type form, and click the pencil icon.
Once you did, the field will become editable and you can set it to any length you might need, between 1 and 720 minutes. When you're done, click the pencil icon (or anywhere outside the field) to lock your changes and save your meeting type.