Computerized dynamic splitting of interaction across multiple content

User interface (UI) manipulations may be performed by eliminating noticeable process boundaries associated with or generated by different applications. The techniques herein describe dynamically splitting manipulations across multiple pieces of content without regard to various types and/or states of the user interface manipulations and/or without regard to whether the multiple pieces of content are associated with different individual processes. In at least one example, the techniques described herein enable quick, responsive, and seamless UI manipulations with complex configurations of content on a UI and/or with multiple pieces of content associated with more than one application. Additionally, the techniques described herein further enable content on a UI to "stick" to the user input manipulation or move with the user input manipulation such that the content appears to stay directly in contact with the user input manipulation.