The Microsoft Power Apps Team has released a new Experimental feature for Power Apps called Named Formulas. This is like the similarly named functionality that already exists in Excel. So, those used to that will understand this more easily. Once you switch this new feature on you will see a new option called Formulas in the properties drop down box after selecting the App object.
Switching on the named formulas functionality requires you to switch on the experimental feature.
The associated Microsoft blog page announcing this new feature is here:
https://powerapps.microsoft.com/en-us...
GitHub Notes: https://github.com/MrAnalyticals/Powe...