On the Start page in "2. Class & Level" there is an Additional Hit Points override. Instead of just entering a number here, use =SorcererLevel, which will give the character 1 additional hit point per sorcerer class level.
- the CON mod to AC instead of DEX
This gets a bit messier, but it can be done on the Start page using "10. Armor & Shield". Use the armor-type Mage Armor as a base, then use overrides as follows:
Name: Stone's Durability (or whatever you like)
Armor Class: =13+CONMod
Dex Modifier: 0 (unless I am misreading the UA and the class still gets DEXMod to AC while using this feature)
Properties: proficient, stone's durability
- the level gains to appear on Character Sheet IV (though that's not very important)
Not quite sure what you want here. CSIV should duplicate the information from the Start page in Character Details already. Anything further will have to be done by you.
I'm especially confused by the none / 0 / Con... stuff.
I have seen this before, and in my experience it usually happens on the Beta when using Cut and Paste to copy the Trait Descriptions from another source.
Edit: I see the same behavior without any pasting with the Beta. User Phoffman has provided some fixes, and they appear to fix this particular bug.
Also, I see the Stone Sorcerer gets 4 1st level expanded spells instead of the normal 1 or 2.
Edit: The program only allows up to 2 per spell level (an example of something that was not anticipated by the designers), so you will have to manually add them to the spell list on the Spellcasting page if your character knows either one.
Hope this helps.
Edit: Looking at the UA article, Stone's Durability sets your base AC to 13 + your Constitution modifier, so any Dexterity modifier the character may have should be allowed. This makes a better gish sorcerer which is better able to survive in melee combat.