Currently, the addition popup's contents change depending on whether template/scheme or nothing is selected. If a template/scheme is selected, the user can add either a default template or add a scheme. If nothing is selected, the structure is collapsed and the user can only add default templates.
I think it's confusing for the user to have the structure of this popup change depending on the state. Instead, if it is not possible to add a scheme, the schemes should be greyed out (with a tooltip explaining why (if possible)), but the structure of the popup should remain the same.
Currently, the addition popup's contents change depending on whether template/scheme or nothing is selected. If a template/scheme is selected, the user can add either a default template or add a scheme. If nothing is selected, the structure is collapsed and the user can only add default templates.
I think it's confusing for the user to have the structure of this popup change depending on the state. Instead, if it is not possible to add a scheme, the schemes should be greyed out (with a tooltip explaining why (if possible)), but the structure of the popup should remain the same.