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Datalink - Root Path should allow to specify multiple Data Archives

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Originally posted on UserVoice
Currently, the Root Path field of Datalink can be pointed to a single cell to retrieve the name of the Data Archive where the tag resides.

It is not possible to specify an array of cells, as only the first Data Archive will be considered.

There are workarounds for this, such as:
- using an Excel formula to concatenate the root path and the point name and call the obtained cell from the DataItem field
- using single-row queries instead of array queries

Still, it would be nice to have an array-query option also for the Root Path field.