You can manually create each transaction using the "Inputs" button to choose exactly which unspent outputs each transaction will use as inputs, or you can use a program that will interface with bitcoind and build transactions transactions for you.
A program would get the transactions all pushed to the network faster, but would require you to either have the skills to write the program yourself, or would require you to find someone you can trust to write it for you (be careful, a dishonest programmer will be able to steal your private keys and eventually steal all of your bitcoins).
Creating the transactions manually will be time consuming, but at least you have full control over it all.
If this is something you are going to do just once, then it would probably be better to just create the transactions manually.
If this is something you are planning on doing multiple times a day for several days, then you really need a program.
I tried to do it manually now but the transactions are again put together, so i really need to type them in including the amount, click send, type the next one with amount, send ... and is there a way to change the standard amount to send?