There is a way using CSS to ‘force’ the text to appear different to the actual text in the button.
Follow this example to change the button text of the first featured item (.featured-post1) to show the word HELLO
.featured-post1 .featured-readmore {
font-size: 0;
display: inline-block;
}
.featured-post1 .featured-readmore:before {
content: "HELLO";
font-size: 14px;
}The second item would use .featured-post2 etc…