How can I display on a page the list of tags in a specific tag group?

It should be possible with the normal shortcode. You add as parameter include= with the id of the required tag group and show_tabs=0 to disable the tabs. If you choose the same value for smallest= and largest= , all tags should display with the same font size. Lastly, you can play with ul_class=something to create your own styling, e.g. displaying them with bullets and so on.

Alphabetical order is default behavior.

More information about the parameters is available here: https://www.christoph-amthor.de/software/tag-groups/#Parameters

Thank you! That worked great ??
Just one last question as I am new to shortcode and css, how and where do I set the ul_class parameter so that the list is vertical (not horizontal as is the default display) and with regular bullet points? Sorry for the dumb question, but you’re a life saver if you answer this!

and in columns if possible! i.e. alphabetically in columns (so that if I have 300 tags placed vertically the page is not a mile long, but the tags are divided into 6 columns of 50 for example)

The ul_class parameter goes with the other ones into the shortcode. You use an identifier that is specified in your style sheet. You also have div_class and div_id. If you are not familiar with it, you can find many instructions on css on the web.

You could try making the columns through the style sheet like:

.my-great-tags {
       -moz-column-count: 2;
       -moz-column-gap: 10px;
       -webkit-column-count: 2;
       -webkit-column-gap: 10px;
}

But I haven’t tried it and cannot tell you if it works.

Great, thank you so much!