Camera Presets Overwriting Keys

I've been trying to use the Camera Preset feature in Studio to create a sequence of renders from different angles. I'm working with more than one file and was wanting to use the feature to share the positions among scenes, and to back up my shot choices.
I select the camera, click the + sign, choose Camera Preset, give it a name and choose Single Frame.
When I reload the setting, it clears the other camera positions from the timeline.
Is this a bug?
Is there a way to keep this from happening?
Post edited by Reality1 on
Comments
A camera preset will remove the existing camera(s) and repalce them with the loaded one - you may not notice this if the names match. If you hold down the cmd(Mac)/ctrl(Win) key you will get the option to load the new camera without losing the old.
What I ended up doing was saving a Pose of the Camera. Single poses load into the timeline without overwriting the entire line.
But I'm wondering now what is the difference between a Camra Preset and a Camera Pose.
Are there any additional settings stored in the Camera Preset?
Thanks!
A pose will store only properties marked as Modifier/Pose (in the Parameter Settings dialogue, which you can open by clicking the gear icon on the slider), I'm not sure which camera properties are so marked.
Good to know. Thanks again.