SEP 14 - Move clients among groups

Hello all, 

I am trying to move SEP 14 clients among different groups from outside SEPM. 

I have tried the following with no success:

- Import a new sylink.xml from the client, exported from the target group

- Use sylinkdrop, both manually and pushed remotely.

- I have found an old tool in connect (sylinkreplacer), that apparentely would do just what we need, but it hasn't worked either.  (https://www.symantec.com/connect/downloads/sylinkr...)

- I have play around some test modifying, deleting, importing different registry keys and no louck neither. 

Does anyone know how to move clients in SEP 14 without using the console?

Kind regards, 

Juan