To follow lots, log in to www.troostwijkauctions.com. Once logged in, you can view the relevant auction and lots. On the right side of the lot description, you will see a 'heart' icon with the text 'follow' next to it. Clicking on this allows you to follow the lot.
If you no longer wish to follow a lot, click on 'Unfollow lot' or on the 'heart' icon.
By clicking on 'Favorites' at the top of the screen, you will find all the lots you have chosen to follow. There, you can also unfollow the lot(s).