Hey overreal, thanks for the feedback! You could probably achieve this by designing the tasks or services in a specific way, such as reading those values directly from the character instead of exposing them. The purpose of this plugin is to give you the option to use a Behavior Tree logic many times without needing any other objects or sources, such as a data table or data assets. The plugin allows you to change these values via the node in the Behavior Tree by exposing them. If you want to keep it dynamic, you would probably do that by designing the relevant code in a way that reads from the character or any place you want to pull the walk speed value.
But if you have an idea that you think I could include in the plugin, I’d love to hear it. I can include it if it’s possible and feasible.