Hi there!

I noticed that all objects which we can use are activation from a long distance

Is it possible to change distance of activation?

For example:

I wanna activate bed from a short distance or player can pickup any weapons from the short distance

what do you mean, you want to reduce the distance in which they'll get the "activate xyz" prompt in game, do i get that right...?

don't know of any way to directly do this, but you could work around like this:

basically, make the activator a static instead and put an activator primitive around it, mark this as "player activation" on the ref.

this primitive starts disabled, an on it, you'd put a script that checks for player distance and only disables the primitive (= when you get the prompt) when he's within your desired distance (and re-disables when not).

instead of distance checks, you can of course also go with a trigger etc.

(if you go for distance, don't let querying start before OnCellAttach and stop OnCellDetach, or even better, onCellAttach register for a single GainLos from player to the static you made (not the activator, neither disabled nor primitives fire for los, so that'd double-not work.), and only start querying when that triggers, or do distance checks on single updates only - plus anything else you can come up with to reduce performance impact from getting distance.