Arrange & Display Parts of Grids in Mathematica

Question

In order to find quickly the location of my data, I display a table with my variables names as well as informations about each.

Since I have a lot of columns (variable) I copy and paste blocks of it in a cell to have them all on 1 screen.

I would like to code this, such that I would input several range of Rows to be extracted and efficiently displayed some how on a Grid that would fit an area of the screen ? I have failed yet to display 2 grid nicely together.

In case I did not express my problem properly above, here is a simple example:

How can I move the blue part to the side of the pink one if the output of laList is what we have to deal with ?

co1    = Range[6];
co2    = Range[11, 16];
co3    = {"A", "B", "C", "D", "E", "F"};

laList = Join[{co1}, {co2}, {co3}] // Transpose;

laListGraph = Grid[laList,
Dividers -> All,
Alignment -> {Left, Center},
ItemSize -> Automatic,
ItemStyle -> Directive[FontSize -> 14, Black, Italic, Bold],
Spacings -> {2, 1},
 Background -> {None, None, {
     {{1, 3}, {1, 3}} -> LightRed,
     {{4, 6}, {1, 3}} -> LightBlue
   } } ]

Answer 1

EDIT:

On second thoughts, what I had earlier is not what you wanted... you want it displayed as columns, but with the second half of the rows split and displayed beside the first. The following code should do that. Let me know if this is what you had in mind...

(Grid[#1, Dividers -> All, Alignment -> {Left, Center}, 
     ItemSize -> Automatic, 
     ItemStyle -> Directive[FontSize -> 14, Black, Italic, Bold], 
     Spacings -> {2, 1}, 
     Background -> {None, 
       None, {{1, 3}, {1, 3}} -> #2}] &) @@@ {{laList[[;; 3, All]], 
    LightRed}, {laList[[4 ;;, All]], LightBlue}} // Row