This is one reason that I like to use 'automation' as opposed to creating 'events'.  When you right click on a parameter and click 'create automation clip',  FL throws an adjustable line in the lower panel of the playlist, which you can then adjust to your whim (you'll have it down in no time).  This is a visual way,for me, to see what changes or 'events'  ive placed in the track and they are straightforward to get rid of.  Definately one of the most powerful features in all of FL as you can automate almost any parameter inherent to FL.