Chrome extension Linkedin

I am the owner of a linkedin group and I would like to get all the links of the posts published in the group, because when I do a search on linkedin it only shows a few posts, but never the whole group.

My idea is to get a list of all the posts published historically and their links so I can add them to my website. In addition, I would like to have an extension that allows me to copy and paste the posts published on my website where I would have all the historical posts that members can consult.

I need to know if it is possible to obtain all these posts and if it is possible to create a link application between the group and my website.