How do i add to-do-lists and new to-dos?

Click + to-do list to add a new list for your to-dos and click + to-do to create and assign a to-do. The recipient of the to-do will be notified via email. You can also start todo-related discussions with other team members by clicking the title of each to-do.

You can arrange the order of to-dos as well as todo-lists via drag & drop.

How can i filter to-dos, lists and people?

You can select and filter the view of all todos with searchable dropdowns at the top of the page. (Filter view by project, todo-list or person)