TransientPeriod :IPAM.GroupNode == > Operation not supported on IPAM.GroupNode

Hello i'am trying to update transient period via IPAM.GroupNode

this what my line of code looks like :

Set-SwisObject $swis -Uri 'swis://xxxxxxxxxxxxxxxxxxxx/Orion/IPAM.GroupNode/GroupId=159,ParentId=0,AncestorId=159' -Properties @{TransientPeriod = 86400}

and this the error i get:

Set-SwisObject : Operation not supported on IPAM.GroupNode

my Question is: is it possible to do it ? or i'm doing it wrong ?

thank you