Question about TP-Link Tapo C210 V2.2

I already have a Tapo C210 in use, still without storage (scan disc or cloud) only for live monitoring. I would now like to monitor more areas in the shop, i.e. 3 additional Tapo C210. Can all 4 cameras then be "controlled" via an app or viewed live from home? If I understand correctly, give each camera a different name or? What makes sense for storage then? Each individual camera with a scan disc (recommendation storage capacity for e.g. 4 days recording, 24 h?) or iCloud subscription (is a plan for all 4 cameras possible, costs?)? Many thanks if someone can enlighten me in the surveillance jungle :-)