Select the layer contents (instructions on how to do this are on step 13)
![Picture 23b[6] Picture 23b[6]](/./images/stories/TRONGrid_2FE2/Picture23b6.png)
Go to Select > Modify > Contract, and choose 25px. If your squares are a little smaller or larger than mine, and this doesn't look good with these settings, than adjust as necessary.
![Picture 23c[6] Picture 23c[6]](/./images/stories/TRONGrid_2FE2/Picture23c6.png)
Click OK. Man, that was an easy step!
![Picture 23d[6] Picture 23d[6]](/./images/stories/TRONGrid_2FE2/Picture23d6.png)
Click backspace/delete to get the middle out of there. If necessary, deselect after this. Haha, that was easy too!
![Picture 23e[6] Picture 23e[6]](/./images/stories/TRONGrid_2FE2/Picture23e6.png)
Duplicate this layer, and move the new layer to the right. Hit (control/command + E) to merge the layers, and then repeat. Do the same in a vertical direction, until you have 3 columns and 4 rows like below. Make sure all your squares are on one layer when your done (but not on that black layer that we've already talked about in Letter A).
![Picture 24[6] Picture 24[6]](/./images/stories/TRONGrid_2FE2/Picture246.png)
Hit (V) and move the grid to the bottom half and center it.
![Picture 25[6] Picture 25[6]](/./images/stories/TRONGrid_2FE2/Picture256.png)
Duplicate this grid layer and turn off the visibility for now.
![Picture 25b[6] Picture 25b[6]](/./images/stories/TRONGrid_2FE2/Picture25b6.png)