Good Morning Pedro.
First, please check on the somewhat 'formal statement' below.
What you want to accomplish then, as this now appears, is more than desinged in the software sofar.
And in general, for situations like this, where a user asks for a change of behaviour of the current release of the product, I can propose to add an Idea in the Communities.
So, as to this case, we then encourage you to open an Idea in the CA Service Catalog Community.
To get your Idea voted for and reviewed by us there after.
For us to see whether it is possible to get this functionality implemented in a future release of the product.
As to check the mdb content for this, then please check on thw below (example) queries:
select * from usm_link_ticket_request_item where persid='chg:400001' or persid='cr:400001'
chg:400001 | 19 | 10398 | 10069
cr:400001 | 22 | 10016 | 10004
select * from call_req where persid='cr:400001'
400001 | cr:400001 | 22 | Disk broken | Disk broken
select * from chg where persid='chg:400001'
400001 | chg:400001 | 19 | Procure Server | SLCM Request Id 10069 Procure Server
Thanks in advance for your efforts on this and kind regards, Louis.