Press the Ctrl+Shift+P keyboard shortcut (Command+Shift+P for macOS users) to open the "Command Palette".
A menu will appear on the editor toolbar:
Select the "Preferences: Open Settings (UI)" command from the menu. ā You can scroll down through the list of commands to find it or type the name in the field.
A "Preferences" tab will open in the Arduino IDE main panel.
Type arduino.sketch.inoBlueprint in the "Search Settings" field of the "Preferences" tab.
Remove the quotes from the value in the "Arduino āŗ Sketch: Ino Blueprint" setting field.
Close the Preferences tab by clicking its X icon.
Select File > Quit from the Arduino IDE menus.
All Arduino IDE windows will close.
Start Arduino IDE. ā This restart is required to cause Arduino IDE to recognize the change to the setting.
Select File > New Sketch from the Arduino IDE menus.
After the removal of the quotes from the field, the new sketch should be populated with the contents of your custom "blueprint" sketch.
My saved instructions are as follows and they still appear to work
When a new sketch is created, Arduino IDE populates it with the bare minimum empty setupand loopfunctions.
Some users may wish to adjust this code. That is now possible by specifying the path to a file containing the custom content in the advanced settings:
Press the Ctrl+Shift+P keyboard shortcut (Command+Shift+P for macOS users) to open the "Command Palette".
Select the "Preferences: Open Settings (UI)" command from the menu.
A "Preferences" tab will now open in the IDE. In the "Search Settings" field, type arduino.sketch.inoBlueprint
Add the path to the file containing your custom new sketch content in the field under the "Sketch: Ino Blueprint" setting.