I have a set of ~300 fixed agricultural field polygons in the Amazon for which I have 3 timed events or four historical land cover classes - year of removal of original forest for pasture, year of conversion from pasture to agriculture, and year in which double-cropping began. I am trying to figure out how to enable time on this layer so I can put it in a storymap and allow others to browse the data to get historical information about specific parcels. The data are currently in a shapefile format with an ID column containing a parcel number in each row, and year columns from 1976 to 2014 with a class label of 1-4 (forest/pasture/soy/double) for each parcel in each year; I also have a version with only 4 columns: parcel number, year of deforestation, year of pasture-ag conversion, and year of intensification. All the documentation I find for enabling time on features seems to refer to tracking a single time event, or a begin-end date, but not 3 separate events. I've also thought of rasterizing the whole mess and displaying it with the vector parcel map overlaid and labelled... Is it possible to do what I want using the built-in time tools?