how to categorize transactions quickly

[Anil F Duggirala]

hello,
I am a new user of KMyMoney. 
Most transactions I have I am importing from csv.
I am wondering how I can assign categories to these transactions quickly?
Previously, when using ledger-cli, I used to have a command line script that 
would quickly allow me to go through transactions and assign a corresponding 
account also providing auto-completion.
How do you assign categories quickly in KMM?
Is there a way to quickly (using the keyboard maybe) one can run through 
transactions assigning categories?

thank you,