The Valheim Plus mod does dozens of things to improve one's gaming experience. Two of its key features is Advanced Building Mode & Advanced Editing Mode. It also has a feature that allows transportation of ore & ingots through portals, and lots of tweaks like crafting from chests, zooming out while sailing and never ending fuel for lights & fire sources. The developers of it are also quick to implement updates when game patches or updates cause a conflict with the mod. I never use mod managers due to previous experiences, choosing to directly download myself.