LG 49VH7E-A Owner's Manual page 19

18
How to Join Sets
• Lay the protective sheet on top before installing additional sets.
1
Join other sets using screws for fixing the VESA wall mount in the same way as above.
2
Adjust the spacing between the sets using the tiling guide, and remove the protective sheet.
3
Now the 2 x 2 tiling is complete.
You can tile in various combinations, such as 3 x 3.
(M4 x L6)
Set 4 joined to the rest of the sets
(2 x 2 tiling)