I responded to your direct email originally, but looks like I forgot to update the forum here so sorry for the delay on that. In answer to your question…
In the Pro version you can update the “Current Sign-up Sheets” to any text using the shortcode such as… [sign_up_sheet list_title="Volunteer Opportunities"]
In both version, to hide that heading you can use something like the following…
.page-id-22 h2 {
display: none;
}
The .page-id-22 is an example of a class for the page you wish to suppress in my example the page id is “22” but you can update that as needed (this is a class in the
tag).
There is currently no class specifically defined on that heading at the moment, but this is expected to be added in a future version of both the Free and Pro plugins.