[Qgis-user] Request for help with style control for lat/long grid and marker points (Eric Delson)

[Eric Delson]

Hello, I posted this request about 10 days ago but have had no comments 
or responses, perhaps I was unclear that I wanted help, so I am trying 
again.

I am making maps for publication in journal articles using QGIS (3.12) 
and Natural Earth base data. I have two questions:

How do I control the appearance (presence/absence, line style, labeling) 
of latitude/longitude "graticule" lines? I was able to change the name 
of the Equator in the Attribute Table, but not the placement of the 
label or other features.

I am placing a series of point markers from an imported Excel file of 
decimal latitude/longitude coordinates, with each point having a place 
name and category (time bins). How do I control the label, size, symbol, 
and color of each point, either by reference to its category or 
individually if necessary?

I have an earlier version of such a map made by a colleague in ArcGIS, 
which I can send offline if any of you wishes to see what I am seeking.

Many thanks, Eric Delson (Professor of Anthropology, City University of 
New York)

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