Add optional conditions to predefined conditions?

Configuration Blueprints
1

I have a blueprint which switches off lights automatically when no motion is detected. This blueprint uses a predefined set of conditions.

I want the user to be able to add any number of optional conditions which also must be met. How do you do this? Normally I would use condition: []; but how do I combine this with my predefined conditions?

I tried:

condition:
- condition: state
  entity_id: !input 'light_entity'
  state: 'on'
  for:
    minutes: !input 'wait_time_selector'
- condition: state
  entity_id: !input 'motion_entity'
  state: 'off'
  for:
    minutes: !input 'wait_time_selector'
- []

But that obviously does not work.