It’s always important to inspect you data before processing it. Before starting to inspect your data, you want to make sure you selected the elements you need in source node.
Data tab is where you can inspect the data coming out of the node you selected.
A quicker way to inspect column name is to use Overview. If you want to inspect column names for a source file, under Datasets, you can click arrow icon in front of the file name.
If you want to inspect column names for a node, under Datasets, you can click arrow icon in front of the node, then click on show unchanged fields.
Use Unique node to see the unique value of a selected column
Use Breakout node to review data of selected column(s)
You can use breakout node to check for specific parameter/column. Toric inherits the same Revit parameter when model data are imported to Toric. If you imported 3D geometry, you would find Model column in your data.