Alcatel IDOL 4 (6055A) User Manual page 80

Working with pictures
You can touch one album, then slide left or right to view the pictures.
Touch a picture you want to work on, touch the icon to delete a
selected one. Touch to share selected ones.
Touch the icon to set them as contact ID or wallpaper, etc.
Touch to access more options.
Batch operation
The Gallery provides a multi-select function, so that you can work with
pictures/videos in batches.
and touch Select
Open the main Gallery window or an album, touch
item to activate batch operation mode (you can also touch and hold
one album/picture), then touch videos/pictures you want to work on.
Touch the icon to delete selected files. Touch to share selected
files.
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