Allow global instructions to be applied to multiple custom templates:

for example:

(Use full sentences and paragraph format except for Past Medical History and Next Steps. Always refer to the patient by first name. Don't include the section headings in the output. Use NZ English with avoidance of American English, for example "vulval" instead of "vulvar", and include Macrons in any Māori words. Never refer to the doctor dictating the letter in the third person - always in the first person. Common medications I might refer to include Ovestin, Dermol, Ginet, Cerazette. As a general rule, I will almost always use medications that are listed on the NZ Formulary. Use "umbilicus" instead of "belly button". Avoid "scan", refer to "ultrasound", "CT", "MRI", etc. as appropriate. Avoid using "she" at the start of a paragraph, use the patient's first name. )

I add this to every template, and when I change it i have to copy and paste to multiple templates.