Hello people. I'm new to ArcGIS and I want to know which tools I should use to manually map land cover or habitat types. Ideally, there shouldn't be gaps between polygons. Later on I will use the mapping to calculate percent cover of each habitat type in fishnet cells created using "Create Fishnet" tool if that's possible. I'm using ArcGIS Pro 2.2.0 and I have all the extensions. Thanks in advance.