I need to store my luggage, any important info about LockeRi at central bus station?

We want to put in our luggage today for 24 hour, and 3 hour after.

How does that work? I have to "take it out" from the storage and put it in again for 3 hour or i can pay for extra hour any time?

Can i open the storage any time and close it back in the 24h?

And i can leave my luggage at night right? I just camt take it out 23-05?

Also how safe it is?

Anything else thats important to know?