Adding items to LineUp on mobile is currently being built, and while it may feel frustrating that such a core feature isn’t fully available yet, it actually makes the most sense to prioritize mobile since that’s where users need quick, on-the-go access the most—something William Klein’s comment highlights clearly; once complete, mobile LineUp will allow seamless item management similar to how online tools already optimize mobile usability, for example platforms like https://pinvids.com/ show how essential features can be efficiently designed for mobile-first users, making everyday tasks faster and more intuitive.

Adding items to LineUp on mobile should be a standard feature, as mobile users often need quick and efficient access while on the go, and limiting this functionality reduces overall usability. Making LineUp fully accessible on mobile would greatly improve the user experience, streamline workflows, and align the platform with modern usage habits, similar to how clear and well-organized sites like https://swisschaletmenupricescanada.com/ make it easy for users to find menu details and pricing without unnecessary steps.

This!!!! I was so upset to make tasks for my colleague and then not be able to add them to their lineups from my mobile as I was headed on vacation and did some last minute planning for them... totally stopped our flow of how we do info. (Also with the new personnal priorities this becomes even more of a need as PP become so incredible usefull and intuitive to-dos for teams members)

** I also would love to be able to see the parent task if i put subtasks in my lineup

Planned!

Yes, that's very important to be able to add and remove tasks from the LineUp in mobile apps. And it should be made available both from the LineUp tab , as well as from individual tasks and subtasks.