When you create a file to add to your project (Create a New File), a template is used for the new file. To change this template, select Tools>Templates and then “Open in Editor” to edit a template. You may also use “Add” or “Duplicate” in this dialog to create new templates.
“New Folder” can be used to create a new folder to hold templates. Be aware that MPLAB X IDE filters out all but Microchip Embedded, Shell Scripts, Makefiles and Other, so files or folders should be created under those folders.
You may set template options by selection Tools>Options (MPLAB X IDE>Preferences for macOS), Editor button, Code Templates tab (as shown below).
An option of note for C code is the “fcom” option. In an Editor window, type “fcom” and then press “Tab” to insert the following text into the source code:
// <editor-fold defaultstate="collapsed" desc="${comment}">
${selection}${cursor}// </editor-fold>
This option allows you to hide/view sections of code.
In the Code Template tab, selecting “fcom” will display “${comment}” in the “Expanded Text” section. Hover over this text to see the full text.