There are 2 phases when you use Ventoy to boot an ISO file.
Take CentOS for example.
Phase 1:
Ventoy's boot menu is shown, you can choose the CentOS iso file.
Phase 2:
When you choose CentOS iso file and press Enter. CentOS's original boot option will be shown.
This is 100% original boot menu and style of CentOS.
So here you can press e or tab key to edit the boot option as you want.
PS: When I test CentOS with Ventoy, I always press e or tab to edit its boot menu (remove the quiet oiption to show more detailed log).
Remember that, when you use Ventoy to boot an ISO file, it's just like that you burn the ISO file to an CD disk and boot it with a physical optical drive.
Take CentOS for example.
Phase 1:
Ventoy's boot menu is shown, you can choose the CentOS iso file.
Phase 2:
When you choose CentOS iso file and press Enter. CentOS's original boot option will be shown.
This is 100% original boot menu and style of CentOS.
So here you can press e or tab key to edit the boot option as you want.
PS: When I test CentOS with Ventoy, I always press e or tab to edit its boot menu (remove the quiet oiption to show more detailed log).
Remember that, when you use Ventoy to boot an ISO file, it's just like that you burn the ISO file to an CD disk and boot it with a physical optical drive.