Question about transfering funds

So if i deposit in my account can I use my funds in the invest account and CDF? or they are separate funds?
Also can i transfer the unused funds from the CFD account to transfer to the invest account? or do I have to do a separate deposit?

there is a section called manage funds in the menu that allows you to deposit, withdraw and move funds. you will want to use the move funds option and this will allow you to transfer money between your different types of account.