Adobe InDesign - Manual (Page 351)

Note:
InDesign tracks the previous 35 distinct glyphs you inserted and makes them available under Recently Used in the first row of the Glyphs panel
(you have to expand the panel to see all 35 glyphs on the first row).
Do one of the following:
Double-click a glyph under Recently Used.
Choose Recent Glyphs on the Show list to display all recently used glyphs in the main body of the Glyphs panel, and then double-click a
glyph.
Clear recently used glyphs
To clear a selected glyph from the Recently Used section, right-click (Windows®) or Control-click (Mac OS) a glyph in the Recently Used
section, and then choose Delete Glyph From Recently Used.
To clear all recently used glyphs, choose Clear All Recently Used.
Replace a character with an alternate glyph
When a character includes alternate glyphs, it appears in the Glyphs panel with a triangle icon in the lower-right corner. You can click and hold the
character in the Glyphs panel to display a pop-up menu of the alternate glyphs, or you can display alternate glyphs in the Glyphs panel.
Selecting alternate glyphs in OpenType font
1. Choose Type > Glyphs to display the Glyphs panel.
2. Select Alternates For Selection from the Show list.
3. Using the Type tool, select a character in your document.
4. Do one of the following to replace the selected character in the document:
Double-click a glyph in the Glyphs panel.
Select a glyph on the menu.
Display OpenType glyph attributes in the Glyphs panel
For easy selection, the Glyphs panel allows you to display characters for only the selected OpenType attributes. You can select various options
from the Show menu in the Glyphs panel.
Do not confuse these options with those that appear on the Glyphs panel menu, which let you apply forms to selected text. (See Apply
OpenType font attributes.)
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