The rules that use the category "<change_parameter>" are:

<firing_rate_command>

<change_parameter> <firing_rate_descriptor> by <firing_rate_setting>

<change_parameter> <firing_rate_descriptor> to <firing_rate_setting>

<scale_operation>

<change_parameter> scale to one over <scale_number>

<change_parameter> scale to one to <scale_number>

<speed_command>

<change_parameter> <speed_descriptor> by <speed>

<change_parameter> <speed_descriptor> to <speed_setting>