Could you describe what is your overall goal and particular needs are? Slicer core modules are very generic, they expose all possible options, and therefore they are complex, take a lot of space, and not optimized for specific use cases.
If we cannot figure out a solution that works well for your use case but also preserves generality of the core Markups module then you can create a landmarking module with fine-tuned user interface for your particular task. It is very easy to put together such modules, because you can use high-level widgets that Slicer provides using a visual user interface editor.
I think something is already being developed in SlicerMorph, but it may or may not be optimal for your workflow. @muratmaga is there a landmarking module in SlicerMorph? What are its main use cases?