Solution
If you want to automatically have the Measurement Studio controls added to the Visual Studio Toolbox, you should create your project as a Measurement Studio project, as shown below.
To add Measurement Studio controls to the Visual Studio Toolbox, right-click the Toolbox, select Choose Items, and select the National Instruments components you want to add. If National Instruments components are not listed, click Browse, browse to the <Measurement Studio Assemblies>\Current folder, and select the National Instruments assembly that includes the UI controls you want to add.