Vmax Meta R1/R2 expand meta stripe Online

Hello,

i have a meta Raid 5 R1 on a Vmax and another meta Raid 5 R2 on another Vmax.

Meta R1 is mapped and masked on a windows host.

So I want to upgrade meta stripe online (R1 and R2 or R1 then R2)...

Is it possible ? How to do that by Symcli commands ?

When i use the command symconfigure with file described below form meta from dev 118, config=striped;
add dev 2AB to meta 118;
add dev 2AC to meta 118;
add dev 2AD to meta 118;

=>  i have the error that meta 118 must be unmasked or unmapped....

Regards