To find the DBID for an Institution Zone collection:
Replace the OneSearch base URL (in this case, SDSU's Primo instance) with your institution's OneSearch base URL in the code below, and use that code in the widget function in LibGuides, or wherever your build your widgets.
<form method="get" action="https://library.sdsu.
<label>DBID <input type="text" name="num"></label>
<input type="submit" name="Submit">
</form>
The CTO record is the PrimoVE/CDI version of the Primo/PCI PNX record - it shows what data is being passed along through Open URL:
To see the CTO button on a PrimoVE OneSearch Record:
My CTO View bookmarklet set up looks like this: