Hi there,
Thanks for your comment. Actually my goal is to add the line itself to the map not the stations. Sorry for my mistake. If I open the metro lines layer some lines had been already added, for example Piccadilly line (blue) and some more as well. However many metro lines are still missing.  What i want to do is just add the Central line (red) to this layer. As far as i understand i have to edit/create "line" instead of "node" and link the  affected stations together? 🤔🙄 Also do i have to add some tag to each of the stations? Like line:Central and/or networkID?
Thanks in advance for your help

Tyler