Dropdown menu for project parameters?

[Ro-Ra]

Hello,

I'm a proficient ArchiCAD user who decided to start learning Revit 2021 by dissecting/taking apart some sample projects. A very good sample project that I'm using is the Austrian "Golden_Nugget" that's downloadable from ADSK.

I've been stuck the past few days (tried searching and Google) about some project parameters which use a dropdown menu. The ones I'm referring to are located within the view properties under "constraints" and are called "Projektbrowser Ebene 1/2/3" and they have dropdown menus which forces the user to make a choice.

Where are the dropdown menu choices located? I wasn't able to see them under Manage -> Project Parameters. Also, I can't seem to change the discipline and parameter type for existing ones only newly created parameters. Is this intentional with no way around once you create a parameter?

[ToanDN]

Only some built in system parameters have drop-down.  Additionally, you can create it in a family by using a Family Type parameter but that's about it.

[RDAOU · Accepted solution]

@Ro-Ra 

Those are project parameters used for sorting and grouping Views and Schedules and/or sheets in the Project Browser

1. Once Defined, you cannot change their type (instance to type or vise versa)
2. Note: Some family categories are available only when parameter is set to Instance (example: Views and Schedules) ... For that reason, once the parameter is defined as instance, you cannot change it to type otherwise the selected parameters might become invalid
   • 
3. The inputs in the Drop Down menu automatically populate when you add new ones to it. There is no other place to define new values except 
   • In the properties palette by inputting a new value into that parameter (See GiF below)
     • 
   • Or in the schedule (when you create a view list and add these parameters/fields to the schedule)
     • 

You apply sorting and grouping to the browser  as follows

[Ro-Ra]

Thanks for the detailed explanation @RDAOU and the time you put into that post! Yeah, that dropdown menu makes me believe the choices are obligatory like in most other programs' UI.

[Ro-Ra]

One more question: does anyone know where I can find a copy of Gebaeudebuch_GemeinsameParameter.txt? I accidentally overwrote the contents of it.

[RDAOU]

@Ro-Ra 

It Depends on the installation and the plugin version .. go on windows explorer and do a search. By default it should be on the following path (ex: Revit 2020 and Revit 2022)

• C:\Program Files\Autodesk\Roombook Areabook Buildingbook for Revit 2020\Buildingbook\Program
• C:\Program Files\Autodesk\Roombook Areabook Buildingbook for Revit 2022\Buildingbook\Program

The .rfa needed are by default installed under the imperial library

[Ro-Ra]

It was in that directory where I accidentally overwrote the .txt file. So I need to download it/find it from someplace else.