Can you use Line clamps for bridge of other cables?

Hello everyone,

I recently bought and use few shelly dimmer2's and have few open points which are not written in the user guide

Does anybody know whether you can use any Line clamp to connect to mains?

Can you use other Line clamp to bridge with the rest of the electrical installation? Reason for asking this is is very limited space where i cannot add further Wago clamps

Regards,