# 09 | Adjust cells for sashing
## Exercise 09
**09** | *Adjust cell sizes to create sashing.*
***Objective*** | To add rows and columns to create sashing between our quilt blocks. We will also show you how to create blocks for cornerstones or to be used in the border.
This exercise guide includes instructions on how to create sashing with and without cornerstones. There are also instructions on how to create custom cornerstone blocks.
### 01a | Sashing with Cornerstones
1. To select all the blocks in the first column of the quilt, click on the number 1 at the top of the column. This will highlight all the blocks in the column as well as activate an **Options** button.
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2. Click on the **Options** button and then select **Insert After**.
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3. Select all the cell blocks in Column 2 by clicking on the number **2** at the top of the column. Click on the **Options** button and then select **Resize**.
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4. Enter the desired **finished width** of your sashing and click **OK**.
* In this example, the finished width of the sashing is 2 inches.
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* There is now an empty 2 inch wide column between the first column and second column of blocks.
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5. Repeat ***Steps 01a.1-4*** for all remaining sashing for both the columns and rows (as desired).
* In this example, sashing was added between all blocks.
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6. Now we can fill in the sashing and cornerstones with the fabric of our choice. In this example, I'm going to use existing Color Tags, but new Color Tags can also be created.
7. Click on all the **sashing rows/columns** between blocks (but not the cornerstones). Once they are selected, they will be outlined in blue.
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8. Click on the **1 PATCH BLOCKS** tab (nested inside the **BLOCKS** tab). It will expand.
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9. Click on the **Add To Quilt** button next to Color Tag A (I want to use the background fabric for my sashing).
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10. Now all the sashing is the same color as the background fabric.
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11. To add Color Tag B to the cornerstones, click on the **cell blocks for all the cornerstones** and **add** the Color Tag B 1 Patch Blocks to them (***Steps 01a.8-9***).
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### 01b | Creating a Cornerstone Block
If you'd like to create a special block to add to your cornerstones, you can design your own block and then place it inside all the cornerstone cell blocks, instead of placing a 1 Patch Color Tag (a).
1. On the quilt grid, select the cell block that you want to put a new block in by **clicking** on it. Selected blocks will be outlined in blue.
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2. **Right click** on the cell block to activate the dropdown menu.
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3. Click on **Create Block 2 x 2**.
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4. The Block Editor window will open. **Create** your new custom 2 x 2 block.
* See [*Exercise 02 | Create a block*](https://courses.prequilt.com/old-courses/quiltcon-courses/deep-dive-into-prequilt/02-or-create-a-block) for a refresher on how to do this.
5. In this example, I created an Hourglass block for my cornerstones.
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6. Click on the **Save** button (
) and select **Save to Quilt**.
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7. The block will automatically be placed in our cornerstone cell block.
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8. Now that we have our custom cornerstone block, you can **select** the remaining cornerstone cell blocks and **add** the custom cornerstone block to these cells.
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### 02 | Sashing without Cornerstones
1. To select all the blocks in the first column of the quilt, click on the number **1** at the top of the column. This will highlight all the blocks in the column as well as activate an **Options** button.
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2. Click on the **Options** button and then select **Insert After**.
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3. Select all the cell blocks in Column 2 by clicking on the number **2** at the top of the column. Click on the **Options** button and then select **Resize**.
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4. Enter the desired **finished width** of your sashing and click **OK**.
* In this example, the finished width of the sashing is 2 inches.
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* There is now an empty 2 inch wide column between the first column and second column of blocks.
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5. Repeat ***Steps 01a.1-4*** for all remaining sashing for both the columns and rows (as desired).
* In this example, sashing was added between all blocks.
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6. To remove the cornerstones, select all the cell blocks in Row 2 by clicking on the number **2** to the left of the row.
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7. Click on the **Merge** button (
)on the central Toolbar.
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8. Now we have one complete row of sashing.
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9. Repeat ***Steps 01c.7-8*** for to create the remaining rows of sashing.
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10. Now we can fill in the sashing with the fabric of our choice. In this example, I'm going to use an existing Color Tag, but new Color Tags can also be created.
11. Click on all the **sashing rows/columns** between blocks. Once they are selected, they will be outlined in blue.
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12. Click on the **1 PATCH BLOCKS** tab (nested inside the **BLOCKS** tab). It will expand.
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13. Click on the **Add To Quilt** button next to Color Tag A (I want to use the background fabric for my sashing).
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14. Now all the sashing is the same color as the background fabric.
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