It is possible to create calculation templates or functions in DAX (Better Copying of Dax)

[mlane]

One the big issues I have faced in Power BI is the need to replicate custom non-parametric calculations multiple times. 

I wish there was a way similar to Power BI templates for visualizations there was a way to encapsulate the nature of a measure or calculation so I can use it across hundreds of fields. 

Similar to what functions do in normal code. 

The second big issue is having to maintain so many different calculations based on versions of the same dataset.   
It would be nice to be able to generalize.   Sorry if this sounds like broad topic, but i have found it to be a major challenge in power bi. 

[Anonymous]

Hi @mlane ,

Based on your description, the Calculation Groups parry2k  mentions can significantly reduce the number of redundant metrics that must be created by allowing DAX expressions to be defined as calculated terms applied to existing metrics in the model. It is also what you call the Power BI template approach. You can make it easier to understand the use of calculation groups by following the instructions in the following documentation

Create calculation groups in Power BI - Power BI | Microsoft Learn
Calculation groups in Analysis Services tabular models | Microsoft Learn

Best regards,
Albert He

[parry2k · Accepted solution]

@mlane at this point the closest solutions is to use calculation groups, it allows you to perform same logic on any measure.