To create a task, select a project in the sidebar
Click on the project, and then click on "Add" button

Alternatively, click on a cell of the day in calendar. Cell of the current day is displayed with an eyeliner, you can select any other date for the task by clicking on the date.

After clicking, task editing window opens.

Fill out task creation form and click on "Save" button
The task will be displayed in calendar, as well as synchronized with other services (Kanban, Gant, Boards)
