How to make Sapling addon settings reappear? The menu for settings disappears when I click on another menu. How do I make it visual again?

When modeling trees with the Sapling add-on, if I click Undo the settings disappear for the Sapling add-on.
This is standard behavior. You can not edit any settings after editing, moving, deselecting, etc. anything in the scene without the editing menu being removed.

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