It would be very useful to have an auto number / auto increment feature for Item Types. This auto number would find the next available number (within a defined point space) based on the Item Type.
The way I imagine this working is I set the AutoNumber field to a default value and it will find the next available number unique to the Item Type. So if I set the default to 10,000 and start placing elements, it will number them: 10,000; 10,001; 10,002; etc... If I set the default to 1, it will number them: 1, 2, 3, 4, etc...
Because the AutoNumber field is unique to the Item Type, I can have multiple elements (with different item types) that have the same number. For example, I could place Monuments and have them number 1, 2, 3, etc... And then place Guardrail and have them also number 1, 2, 3, 4, etc...
This will need to work with Property Types.