bring all entities to one layer

[luca58]

hello to all cad3d friends are luca58

I need your help with autocad 2014.
The question is this:
in a dwg file there are several layers and at each layer there are different entities with various colors to print with different thicknesses.
type a layer for quotas, one for texts, one for plants and one for sections etc..
Is this a command that allows me to select all the entities in the dwg and put them all under a layer?
maintaining for each entity's own colors and not take the color of the layer that receives them (color bylayer).
Is there a command or can you do this with a lisp?
greetings luca58

 

[luca58]

♪
I'm sorry to better formulate the search I found the answer to my question.
discussion: put on single layer many layers maintaining colors of 09/12/2010
I just have to try it to see if it's my case.
Greetings luca58:finger:

 

[MassiVonWeizen]

curiosity: why do such a thing that I personally consider suicide? the layers light them, turn off, freeze them... colors no

 

[luca58]

Hello Massivonweizen
I realize that my request is absurd, in fact I personally work with various layers.
only that my request has a purpose and and to make the colleagues who work "bad" as it is not easy to manage a design
putting various entities all on one layer.
thanks for your intervention.
luca58:finger:

 

[luca58]

♪
I have seen the discussion: put on single layer many layers maintaining colors of 09/12/2010
But it's not my case, so the question I put before remains.
Greetings luca58:finger: