Element templates have the ability to add multiple attributes and features, including cells. However, these are not accessible to the end user unless they go into the element template manager. There are instances where multiple cells might be needed for a specific element template. We'll use traffic barriers for an example. The traffic barrier element is associated with the specific traffic barrier level and line styles, However, the profile of the barrier may change depending on the design of the bridge, architectural requirements, etc. Some bridges use a single slope 36" high barrier, some use a 42" high variant of the same barrier, some use the older F-shape style, and others use a 42" high variant of that barrier. Not to mention the plethora of other barrier types and variations that may exist. Rather than create multiple (essentially) duplicate element templates, the geometry could be driven by cells. Element templates allow the placement of multiple cells, note in the attached photo there is a single slope variant and an F-shape variant (these are parametric cells that have the 36" and 42" variants built in as well). However, when placing active cell, there is no option to select between the two.

The idea proposes a button in the active cell dialogue that filters the cells list by those specifically listed in the currently active element template to allow the selection of the proper cell without the user having to first figure out what cells are associated with the element template and then scrolling through a large list of cells to find it. (see attached image for rough sketch idea)

This idea could also potentially be expanded to level, line style, and other attribute selection filters based on the active element template.