I noticed a couple usability issues with the Topo to Raster tool in ArcGIS Pro. First, please reorder the field and type input parameters for the Input Feature Data. The input for "Field" is dependent on Feature Layer Type. Therefore I think the order should be "Feature Layer", "Type", then "Field". Second, we have the ability to press the plus button several times to add additional input feature data layers to the tool. However, as soon as we add the first feature layer the other input feature dialog boxes disappear. Please either 1) only allow users to add a single input feature layer at time, or 2) do not automatically collapse blank feature layers.
This is a Duplicate of Add Fields (multiple) UI Improvement in Pro. Please visit that idea to up vote and comment. Thank you.