Photoshop Script Gif

1. Import Files

go to file> scripts> load files into stack

click 'browse' to access your files

2. Create Frame Animation

Open Timeline from Window> Timeline
click the "create frame animation" button to start a new animation>
the first frame is appearing in your timeline!

click the timeline's burger menu> make frames from layers>
all your layers are now frames in the timeline

change the motion speed for each frame separately or for multiple frames

3. Export to GIF

go to file> export> save for web

select "GIF" for format.
you can also create a transparent background by ticking the 'transparent' check-box.
save your gif!