Adding an existing angular project to an existing NX project

I have an existing NX project name myorg. which have already three application name one, two, three. I am able to create a new application (name: four) into that NX project (myorg) by the command:

ng g @nrwl/schematics:application four

but I want to add an existing angular project (name: 'todos') into the existing NX project (name: myorg). What is the process ?

Note: I am able to add NX to an existing angular project by command:

ng add @nrwl/schematics