SUMMARY
While looking more at bug 406243 I found the shares from the imported Quicken Deluxe QIF file under "Units" in Skrooge. But the type of each one in [Manual/Share] view is "Currency", not "Share"; also the Name is the symbol name, not the longer name, etc.

The QIF file contains 
^
!Type:Security
NACME CORP
SACMW
TStock
^

OBSERVED RESULT

Name: ACMW
Symbol: ACMW
Type: Currency
Nb decimal: 2
Country: [blank]
Unit: [blank], the drop-down includes '$' plus all the symbols
Download source: [blank]
Internet code: [blank]

EXPECTED RESULT
Name: should be the 'N' record
Type: should be the !Type identifier or maybe 'T' record, maybe transformed from "Security"/"Stock" to Skrooge's "Share"
Unit: I think this should be the Symbol?
I'm not sure about the other fields.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 5.14.5
KDE Frameworks Version: 5.55.0
Qt Version: 5.11.3

ADDITIONAL INFORMATION
In my big QIF export file from Quicken Deluxe 2012, I have

!Type:Bank 
!Type:Cash 
!Type:Cat
!Type:CCard
!Type:Invst
!Type:Memorized
!Type:Oth A
!Type:Oth L
!Type:Prices
!Type:Security
!Type:Tag

the different 'T' records for !Type:Security are
TBond
TMarket Index
TMutual Fund
TStock

I'm not sure how these should map to Skrooge Types.