Trouble getting 2011 iMac to boot from OCLP bootable drive

Hi. I've just installed macOS Monterey on my 2011 iMac 21.5" using OCLP on a bootable drive. Monterey is installed and I've gone through the setup process, however every time I restart or boot my Mac, I have to manually select the OCLP option from the boot menu if that makes sense. I've read online that I need to somehow get OCLP onto the internal Mac drive to get it to automatically start up with Monterey each time but I don't really understand the help posted about this online. Would anyone be able to point me in the right direction? Any help much appreciated :)

submitted by /u/PerformanceWorth3785
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