Answer

For a Popup Dialog menu, choose its Mode from how you want to use it:

ChooseUse it whenRuntime behaviour
Pie ModeA small, directional choice is faster than reading a form.Draws the Popup Dialog in a pie-style presentation.
Popup ModeYou want a short-lived panel that should get out of the way.Opens with automatic close enabled.
Dialog ModeYou need to inspect or adjust several controls without the dialog disappearing.Opens as a persistent dialog with automatic close disabled.

The forum question came from a menu that stayed open because it was configured as a dialog. Choose the mode deliberately; each one gives the same Popup Dialog a different interaction.

Steps

  1. Create or select the Popup Dialog menu you want to present.
  2. Open its extra settings and find Mode.
  3. Start with Pie Mode for a compact directional choice, Popup Mode for a quick temporary panel, or Dialog Mode for a form you need to keep open.
  4. Invoke it from the same hotkey and Blender editor where you will use it.
  5. Rearrange the controls after changing mode. A layout that is clear in a persistent dialog can be awkward in a pie-style presentation.

How to decide quickly

  • “I know the direction by muscle memory.” → Pie Mode
  • “I only need to touch one or two controls, then return to work.” → Popup Mode
  • “I am comparing values, reading labels, or filling out several fields.” → Dialog Mode

Pitfalls

  • These three choices change the presentation of a Popup Dialog; other PME editor types have their own behavior.
  • Dialog Mode helps when several controls need to remain visible. If the layout still feels crowded, split unrelated controls into another menu.
  • Popup Mode’s automatic close is useful for transient work, but it is the wrong fit for a form whose values you need to review before continuing.
  • If the menu opens in the wrong Blender editor or mode, check its context or hotkey separately. Presentation mode changes how the dialog behaves after opening.

Sources