In this step, you will expose the distance variable for the Buffer tool so that you can make it a parameter:
- Right-click on the Buffer tool in ModelBuilder.
- Select the Create Variable | From Parameter option. This will display a list of all the hidden variables associated with the Buffer tool.
- Select Distance [value or field], as shown in the next screenshot:
The Distance variable should now be visible in your model. Now that it is visible you will be able to designate it as a parameter.
- Move your mouse pointer so that it is over the Distance variable that you just added to our model. When your pointer changes to two crossed arrows, indicating that it is now in move mode, drag the Distance variable so it is above the Buffer tool, as shown in the following screenshot:
- Right-click...