Reply to: How to add an XEP customization to XMetaL?January 9, 2013 at 8:27 pm
You can do this in one of two places:
C:Program FilesCommon FilesXMetaL Sharedrenderx
If you change that one then the DITA OT will need to be redeployed. Redeploying copies the DITA OT (and XEP and other required things the DITA OT requires from the XMetaL Shared folder) to the location below.
If you change the deployed copy (as below) then those changes will be lost if you redeploy the DITA OT (as it will be overwritten with a copy from the location listed above):
Which you choose will depend on how you work (whether or not you take advantage of the redeployment feature and perhaps how your authors work).