Hi, there is another solution I came across recently - Web Leads Master. It is a cloud-based linkedin automation platform and tool, and I dare to say one of the best available pieces of linkedin automation messages software that I’ve seen in a long time. It’s not just another Chrome Extension that might put your LinkedIn profile at risk of being restricted. WLM has: auto mass messaging, auto connections, auto-endorsing, auto-visits, + it generates leads and there are many other features that you can find: https://www.webleadsmaster.com/features
It's really easy and you don't need any guide to start some automation. And btw they have a free plan to try out their solution.