Adding multiple datasets to ArcMap with the same coordinate reference system but diff

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I want to be able to load multiple datasets to my mxd, using various CRS (coordinate reference systems). Some of these datasets will use the same CRS, but with different transformations. When I load the first dataset to the project for a given CRS, I am prompted to specify the transformation. However, when loading subsequent datasets on the same CRS - the option to specify a different transformation is not available (it presumably uses the previous selection by default).

Is there any way to specify the CRS and transformation for every dataset loaded to my project (i.e. every time I load any data), and effectively disable this default setting? I do not want to have to use the project tool from the toolbox to effectively duplicate all of my data each time I wish to do this.

Thanks.



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