How do i change the picture duration of the pictures already in place in Windows Movie Maker?

i want my pictures to have alonger duration but going to the tools-options-default durations only changes pictures from then on...can someone help me?

how do i change the duration of all the pictures?How do i change the picture duration of the pictures already in place in Windows Movie Maker?
Select a picture in the timeline, click on the edge of it and drag it to the duration you want.How do i change the picture duration of the pictures already in place in Windows Movie Maker?
Try looking in the edit menu.