There are several camera selection tools available in the Alignment tab, and allows you to remember this selection.
Use the Point Lasso or the Point Rect tool to select a part of a sparse point cloud. Once you have selected a desired part of the sparse point cloud use Find Images tool to find cameras, which have those points in their field of view.
If you wish to select a specific group of cameras directly in 3D view, use the Camera Lasso or Camera Rect tool.
With predefined shortcuts you can remember up to five camera selections and re-use them, when needed:
- CTRL + SHIFT + F1/F2/F3/F4/F5 to remember an Image Selection
- CTRL + SHIFT + 1/2/3/4/5 to choose an Image Selection