Photo Picker - how it works
After pressing the + panel icon in Textra and tapping the gallery icon in the bottom toolbar (if not already in the gallery tab) then simply tap the circle top right on any number of thumbnails and then once done, tap CHOOSE N.
If you wish to view the thumbnails in full screen mode, simply tap the thumbnail and once in the full screen viewer you can also tap the circle (top right) to select. Additionally, you can scroll through your media and also zoom in / out and play videos and GIFs.
Tip
Did you know: To attach or select the latest picture you have taken, please tap on the + panel in Textra > Long hold the Gallery Icon in the footer at the bottom > Picture will be automatically inserted into the new message field.