Can i use the symphonic Halion Sonic Se soundset

Unfortanely i bought this week Symphonic Halion Sonic Se soundset and later this week i want to buy the Halion 4
Can i use the symphonic soundset 16 bit …i think in Halion 4 ?

Sure, you can.

H4 also gives you all the great editing possibilities to create your own orchestral programs as well.

Halion 4 looks great
How do you create you own orchestral programs than?.. and in a higher quality 24 bit?