Hi,

if you have some terminal scroll back functionality in your debugger session, you could just set the first parameter to something greater 1 (depending on how deep you want to dive in)
x 10 grep {$_->{CHIPS_PART_NAME}=~/gravity/i} @goodRefDes
or leave it out to get the full hierarchy:
x grep {$_->{CHIPS_PART_NAME}=~/gravity/i} @goodRefDes

If you want to filter further either add one more grep expression,
x grep {more filtering...} grep {$_->{CHIPS_PART_NAME}=~/gravity/i} @goodRefDes
or if the order of hash entries is meaningful, accessing the array by indexing is another option, eg. access the last entry.
x (grep {$_->{CHIPS_PART_NAME}=~/gravity/i} @goodRefDes)[-1]

Hope that helps.