In SDC VF composition screen the elements to be displayed can be filtred be entering a text in the filter box. However this does not seem to produce the expected results. 

For example (see attached screenshots)

• typing "VDU" results in only "VDU Cp" being displayed under "Generic" -> "Network Elements"
• "VDU VirtualStorage", "VDU VirtualFileStorage" etc are not displayed even though they match the filter text
• Further, typing "VDU V" will now result in these missing types being displayed