Hi, I have the same problem, according to gopiplus (plugin creator), he sent me this email, hope it helps…
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No admin option to add/update the value. but you can add/modify the text directly in the PHP file.
Files
image-management-add.php
image-management-edit.php
Modify the values
<select name=”Ihrss_type” id=”Ihrss_type”>
<option value=’GROUP1′>Group1</option>
<option value=’GROUP2′>Group2</option>
<option value=’GROUP3′>Group3</option>
<option value=’GROUP4′>Group4</option>
..
….
…..
…….
<option value=’GROUP19′>GROUP19</option>
<option value=’GROUP20′>GROUP20</option>
</select>
