Create new Record in 1:1 relationships

Hi all,

I’m new the CRM in general. I’ve noticed something curious, and was wondering if I am doing something wrong with configuration.

When I set up a 1:many relationship between some source and target, there appears a subpanel in the source’s edit page that lists all of the targets, and an option to create a new instance of type target.

When I set up a 1:1 relationship, the source shows an input field, with the option to search for EXISTING targets, but no option to create a new record.

Is this behavior by design? It would seem natural for one to create a target record from the source’s edit page if it doesn’t already exist. Am I missing some options/configuration to allow this?

Thanks in advance for your help!