ADS Version:Aqua Data Studio 14.0.0-rc-8.
Database:Oracle 12c.
Operating Environment: Windows 8.

Go to DBA Tools->Instance Manager->Click on Find Icon, a popup window will be opened for finding text, now use short cut key Cntrl+Alt+F for finding text, no action will be performed.
Instead of Cntrl+Alt+F when we use cntrl+f it opens search window.
When same short cut key Cntrl+Alt+F is used in query analyzer window,it works as expected.