Someone just asked how to document the moments she takes samples mid-roast using the tryer?
Let's just define an extra event button (menu Config >> Events, 2nd tab) labeled "Sample" to do exactly this. As this is not one of the standard custom events that associates time and temperature with a value (like to document the gas setting), we choose the generic event type ("--") for this.
Note that we put "Sample" as event description and ensure that this description get rendered on the profile (menu Config >> Events, first tab).
If we tick "Show on BT" they get rendered on the bean temperature (BT) curve.