Update Site Model

[CS1]

I have created a site model using only around 20 3D loci,

when I change the height of one of the loci and click "update" nothing happens. Am I doing this wrong? If so what does the "update" button do? I know if I alter something in the "site model settings" the change updates as soon as I click "OK" so sont think the update button is for this function

[Robert Anderson]

The loci that are in the document layer are not part of the DTM source data. They are just free-standing loci (and they are there because you left the "keep original data in source layer" checkbox in the Create Site Model dialog). Select your loci that are in the layer alongside the DTM and delete them. Now, select the DTM and choose "Edit Group". Now you are "inside" the DTM. Change the location of any locus in the source data and click the Exit button. How you should see the change when you update the DTM.