Hello,
> Or am I stuck manually having to change every variable?
Certainly NOT!
I haven't used Enterprise Miner since the summer of 2017 (using VIYA Model Studio now), but I remember there's Metadata node that can be used to modify attributes (hence modify the metadata).
You can also use a code node, like done here:
SAS® Enterprise Miner™ 14.3 Extension Nodes: Developer’s Guide
Example 1E: Modifying Variables Metadata
https://go.documentation.sas.com/doc/en/emxndg/14.3/n1t582v60um7p9n1h9d169o0dd8e.htm#p1w9g1nek1qx87n...
Good luck,
Koen