There is a need to better understand the agentic choices that students make to communicate meaning through their multimodal compositions. Utilizing a case study approach, this article examines the composing of two first-grade students and discusses how these students utilized multimodal composing techniques from structured writing units during an "open unit" where students were given wider parameters for making intentional decisions with their compositions. Analysis of students' compositions revealed that students chose to use and design composing techniques from the previous focal units in their compositions. Findings suggest that focal writing units, followed by open composing, allows students to have more agency as writers to make creative intertextual connections as they design techniques from available designs they've learned in order to serve their own compositional needs.