I would like to change the links on the website to a specific target - so search and replace like in word or in Dreamweaver - is that possible without me having to search and change each one individually ?

Only if the button is part of an element that has been set as a symbol.

You can see which how many times it is used and on which pages on the site the button is used on (providing it has the same class name ) here, so that you can quickly go to each page.

If you then open the dropdown ▼ thingy and select the page, it will open that page with that button alreadt welected, so you can then change the target

Short Sweet but silent demo video here

https://youtu.be/6ACnkQJxWSo

thanks Wayan,
good idea I will try it