Hi Jackmarbles,
Could you please furnish some more detail for the information sought?
In case you are refering to auto dimensioning in drafting then as John elaborated the annotations can be pulled in ....in variety of ways.Apart from this Drafting Automation (dfa code driven)too can be used for some auto-dimensioning of views in Drafting.
In case your question is about Modeling (which i presume from drag and drop icons on my assemblies [highlight #EF2929][/highlight])then some smart features like NEW SHORTCUT TOOLBAR (context driven) are there in NX8.5 which intuitively gives you options relevant to the feature selected.
Thanks and Best Regards
Kapil Sharma