There are many options that can be set to modify drawing behavior in System Architect.
Definition Dialog Pop-Up Behavior
If you prefer to work without having to switch back and forth between Select Mode and a specific symbol, from the Tools Menu, click Preferences. Select ‘Simultaneous/select draw.
Display Options
As soon as the symbol is dropped onto the diagram, it gets a name consisting of its type, a hyphen, and a unique number. You can immediately overtype that name.
To change the name of a symbol
Click it, and then click Edit > Symbol, or right‑click it, and then click Edit.
To change a portion of a definition
Click it, and then click Edit > Symbol, or right‑click it, and then click Edit.