chore: add comments/documentation

Signed-off-by: Scott Dover <Scott.Dover@sas.com>

Author: Scott Dover

CHANGELOG.md

@@ -6,6 +6,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ## Unreleased
 
+### Added
+
+- Add the ability to pin columns ([#1781](https://github.com/sassoftware/vscode-sas-extension/pull/1781))
+
 ### Changed
 
 - Update pubsdata files to use the latest version (2026.01) of the SAS documentation for procedures, statements, and functions ([#1770](https://github.com/sassoftware/vscode-sas-extension/pull/1770))

client/src/webview/GridMenu.tsx

@@ -12,6 +12,8 @@ interface MenuItem {
 
 const GridMenu = ({
   dismissMenu,
+  // note: `id` is used to distinguish one menu from another, so that we trigger
+  // a resize when the menu contents have changed.
   id,
   left: incomingLeft,
   menuItems,

website/docs/Features/accessLibraries.md

@@ -12,6 +12,7 @@ You can use the Libraries pane to delete a table, drag and drop tables into your
 
 When viewing table data, you have the following options available for each column (accessible by hovering over a column and clicking the menu button):
 
+- Column pinning: Each column can be pinned to the left or the right of the data viewer to have an always on-screen view of important columns.
 - Sort: Each column can be sorted ascending or descending. To add multiple columns to a sort, click the menu for each column and select the sort type. Sort priority will be displayed next to each column's direction icon.
 - Properties: Clicking properties will reveal the properties for the specific column chosen.