VU Elements
Login to your VU Elements account
Click on 'Menu' and then on 'Publications'. This will open your publication page. Tick the publications you want to select and then click on 'Export'.
Select the 'BibTex' export option
Save the BibTex file.
Next login into your ORCID account and go to the 'Works' section. Import the BibTex file into your ORCID account. This will add all the publications you've selected from your VU Elements account.