Hi @Pavel ,
You could do this by creating a flow, the following are the specific steps:
1.Check Allow 'Fill-in' choices when editing a column->OK
2.Create a flow->See your flows->New flow->Automated cloud flow->Select 'When an item is created'->Create->Fill in Site Address and List Name->Next step->Update item->ID,Title->Type Value: Title->Save
3.Run the flow.
When creating an item, the Type column will automatically fill in the created Title name, which can be changed by editing the item. It is worth noting that if there is no item with the Type option that you want to create, you need to add it when editing the item. This basically achieves what you want, but unfortunately, it can only be selected and displayed when editing an item, and only manually added options will still be displayed in the edit column interface of Type.
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