I think you are looking for something like the "inherited" box that is for 1040 input.  That is not necessary. 

https://proconnect.intuit.com/community/help-articles/help/entering-a-bulk-sale-of-assets-in-lacerte... shows the steps for creating the sale in the depreciation screen. Just click the Follow these steps.... Fiduciary module in that link. 

This may generate a short term, vs long term gain(loss). If that happens you may just need to enter it in the dispositions screen, but try the sale via depreciation screen first. DO A BACKUP BEFORE YOU DO THE SALE IN DEPRECIATION SCREEN, just in case.