Unfortunately not at this stage Sonia, but the more popular a possible feature is, the more likely Reckon may consider it. You can add this (&/or any other) suggestion to the wishlist via "Suggest new features" from the Help dropdown menu & check its progress.
The current workaround is to enter a manual line in the description box noting the qty/total eg:
"TOTAL = xx Hrs"
Shaz Hughes Dip(Fin) ACQ NSW, MICB
Accredited Professional Partner Bookkeeper / Registered BAS Agent (No: 92314