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Help me change master for schematic view

uvxyz

Hi All,

Nice to meet you in cadence community.

I'm a newbie.

I try to use function dbSetInstHeaderMasterName to change master cellname for schematic view,  but there is a warning message "can't set two instHeaders to the same master" because the master cellname I intend to change is being used by another instance. This can be illustrated by the following example:
    - There are 2 instances in cell A
    - Master cell of Inst1 is mas_a
    - Master cell of Inst2 is mas_b
    - I can't change master cell of Inst2 from mas_b to mas_a if using dbSetInstHeaderMasterName.

Is there any way to change master cell of Ins2? Please note that I perform this operation in SKILL source code, not for GUI.

I would lile to receive all help from you.

Thanks you very much,
--vu~

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