Disable a group of entities, one entity or other way to disable?

Is there an option to “disable” an entity in the following way.

1. it is not “disabled” from the interface in terms it keeps visible in Lovelace but jut greyed out or not controllable. If I now disable an entity it becomes yellow and it is not the way I prefer it to work.
EDIT: Solved via a conditional card section (for some entities)

2. If I created a group with 3 entities and want to do the same as in 1, is that possible?
EDIT: Solved via a conditional card section (for some entities)

'3. Is this possible via node red (expose or other).

'4. Is there an other way of doing so?

Might be that my question is a bit hard or cryptic but I want to achieve something very simple.

To not be able to control certain entities (water valves) when I have disabled them and took out the water outside to circumvent freezing pipes. If I have done that I do not want me, others, and automation or nodered to accidentally open the valve when I have disabled it…

Thanks!