If you have grouped your objects and you have grouping enabled, then you can select/deselect that group with just one click.
If they are not actually grouped together, then you have to pick each element individually or sweep a selection area over them which can cause problems selecting/deselecting other elements in the same area as discussed before - depends on whether you use a rectangular or polygon selection area and also partial or entire selection method.
If you know you will be constantly selecting a particular bunch of element, add them to a group.
If you can post an image of what you are trying to select, someone may have an idea for you.
One of the forum moderators.
Versions 6.5 to 25
Dell XPS- i7-6700 @ 3.4Ghz, 16GB ram, GeForce GTX 960 (2GB), Windows 10
Dell Precision 3510 - i7 6820HQ @ 2.70GHz, 16GB RAM, AMD FirePro W5130M, Windows 10