Is there a possibility in QGIS to populate a ValueMap-like form widget with predefined data and additionally offer a possibility to fill in data (that might be missing) manually? Like an editable combobox.
Did you mean adding missing value while setting up your form widget or while editing attribute?
When I enter my data it would be nice to select predefined values, but if by chance a not predefined value appears in field-work it would be nice to record it as well.
A possible solution would be, when an entry like "other" is selected another textbox will be enabled to type the "not predefined value". But the drawback of this solution would be, to have an extra field instead of using the same.
QGIS-Version: 3.16.5 LTR