I will assume that this is for a full year CA return. Enter it just the same as prior years Screen 17, Scroll down to Casualties and Thefts (4684). The amount will show up on 540 Schedule CA to give the CA amounts for Schedule A on the last couple of pages of the CA.

Thank you for stopping by the community and posting a question. To add to what @George4Tacks has posted, here is a knowledge base for this in the Individual module for Lacerte:

Generating Form 4684 Casualty / Theft losses for an Individual Return

https://proconnect.intuit.com/community/help-articles/help/generating-form-4684-casualty-theft-losse...