Hello this test matrix was designed with the xcs pre-setting namely Stainless Steel Dog Tag you will not be able to modify the parameter at the risk of losing all the settings. It is designed for military command plates on aliexpress and engrave with an xtool S1 20 w this parameter will not necessarily be effective on other lasers please take this into account. This is only a test and should be taken as such. This will give you an idea of ​​the parameters to use in your own tests.