is there a way to have for example 25 options in a conversation but only showing 8 of them at a time and the possibility to scroll the list of options up and down?
There's no limit to the number of options a Conversation have, and how many are shown at a time is determined by your Conversation Menu. Your DialogList element, which shows the options, has a Maximum no. of slots field.
If the active Conversation has more options than are being shown, you can create Buttons in your Menu that scroll through them - create two Buttons in the same Menu and set their Click type to Offset Element Slot, then fill in the fields beneath to have them shift your DialogList left and right. The same trick is done with the default interface's Inventory Menu.
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If the active Conversation has more options than are being shown, you can create Buttons in your Menu that scroll through them - create two Buttons in the same Menu and set their Click type to Offset Element Slot, then fill in the fields beneath to have them shift your DialogList left and right. The same trick is done with the default interface's Inventory Menu.