Where is the orbit function?

The orbit function on iPad/iPhone (probably on other tablets/smart phone) seems to be replaced with the "look to" feature.

Can anyone tell me why?

Naturally when in fly mode it begs for orbit mode. Also the look around seems to me redundant while you have the option to use the motion sensor of the phone which allows you to look around as you turning any device. So maybe if the option turned on, the one finger should turn to orbit function.

For a large model when I would like the client to explore the project from above, it is necessary to be able to orbit, (turn table) the model. Period.

Can anybody advise on this? Thank you!