To type directly the circumflex accents with the computer keyboard:
Type a=, e=, i=, u=, w=, y= for: â, ê, î, ô, û, ŵ, ŷ
Type a==, a===, a==== for: á, à, ä, etc...
The circumflex accent is used to mark the long vowels
Copy [Ctrl]+[C] & Paste [Ctrl]+[V]