Well, I did some tests using your suggestions, and here are the results;
My simulated FMC is based on O.P. U10.8A
I started inserting the following route:
Origin LIMF (Turin)
Dest LIRN (Naples)
Route LAGEN UL50 ELB UM729 PNZ
Departure on Rwy 36 IC TOP6A Trans. LAGEN7L
CRZ level FL290 and filled all in the PERF INIT page and Take Off page
Ok, the route shows good and is validated from Eurocontrol CFMU.
On the ND only the Top of Climb is actually displayed as you can see in this PLAN view (I checked the complete route and no T/D is present).
The next action was to change SPD/LVL data to the last point (PNZ VOR) in accord to the expected STAR, so I changed data from the planned .750/FL290 to 240/FL100 (a minimum of 7000 ft is required after PNZ VOR), and re-checking the route (I was still on ground) finally I found the T/D point (don't know why the speed constraint is removed).
The same result was achieved inserting the DEST ICAO as last fixpoint or the rwy or a STAR/APP, but this way it seemed to me the most useful, not requiring any deletion in the next phase of flight, but just the insertion of the assigned procedure when obtained.
So what can I say?
Thanks, different of your suggestions works well on my system, from time to time now I'll choose the best depending from the situation, but I undertood something more accurate about real procedures, and maybe this simulation has some bug yet, but starts to be every day more interesting!
See you for the next question guys!
Mauro