Ah, that is different, the layers of the other images are not included in the created files, but are offered as a choice by the startup dialog, which is expected since you can use any layer from any open image as a title (along as it has the right size). So yes, if you have many images with many, many frames open, this will take time, and create a rather long list... I plead not guilty 
PS: a screenshot is better uploaded as a PNG. Somewhat smaller (692K vs 1.1M).
PS: a screenshot is better uploaded as a PNG. Somewhat smaller (692K vs 1.1M).