Within the Project description form, there appears to be a choice for the baseline approach: Early Design; Building Archetype; Existing Building and Other.
I have a completed model that utilizes a combination of early design and building archetype to meet targeted carbon optimization goals.
Hi Kaeryn and welcome to the One Click LCA Community!
If e.g. 90% of your baseline information comes from an early design, you could select this as the baseline approach. When the data is clearly from two separate sources (more 50/50 split), you could mark your baseline approach as ‘other’.