@sharonnash,
How do I customise button text (eg “Mark Complete)?
The easiest way to customize the language of almost any piece of text (which doesn’t already have a setting somewhere) is to install Loco Translate and translate LifterLMS text from our defaults to your custom text in the same language.
Here’s a guide: https://lifterlms.com/docs/how-do-i-customize-the-text-of-lifterlms-buttons-and-more/
How do I add padding or lower the position on the page of this button?
Some custom css can make this happen, try:
.llms-lesson-button-wrapper {
margin-top: 25px;
}
You can add custom CSS to your site by using the customizer: https://lifterlms.com/docs/add-custom-css-using-wordpress-customizer/
How do I remove the previous and next lesson links on the bottom of each lesson?
Grab our free LifterLMS Labs Plugin (https://lifterlms.com/docs/lab-action-manager/) and activate the action manager. On the settings screen you can check the box for “Course Navigation Tiles” under thn Single Lesson Actions header
Any other questions let me know