
after your file is made (title or image, etc)
*click on the large single arrow on the left side tool bar
*click on your file
*click edit, duplicate
*click path, outset {OR CTRL + ) }, repeat until you achieve the size mat you prefer
*be sure to separate the 2 items with space in between before saving
you can repeat the process if you want multiple mats.
if you want to eliminate some parts of the mat--if you want just a solid outline & no cut outs on the mat, do this:
*select your mat
*zoom in using your magnifying tool on the left tool bar
*click the small arrow with the little squares located below the single large arrow on the toolbar
*all nodes will appear in your file
*delete the ones you don't want in your file/mat. you can click individually or drag a box around multiple nodes & click delete.