From the Font panel you can double-click a glyph to open a Glyph panel and edit the selected glyph. You can also select a glyph, right-click it and select Edit.
Text Tool
Initially the Glyph panel shows one glyph, that can be edited. Use the Text Tool (T) to type a line of text inside the Glyph panel. Press CTRL+Space to add one or more glyphs from the glyph selection dialog. To add a placeholder, press Ctrl+P. Such a placeholder will always show the active glyph in the Glyph panel. That is sometimes useful for testing a glyph while it is surrounded by other characters. Press the Esc key to return back to selection mode.
To make another glyph active within the Glyph panel, double-click it.
The icon with the two triangles allows you to set the glyph fill (and fill opacity) in the Glyph panel. This doesn’t affect the end result of your font, but it can be useful to switch between glyph fill options while designing your glyph outlines.
You can zoom in to get a close-up view of your glyph or zoom out to see more of the page at a reduced size. You can use the edit field located on the Drawing toolbar to change the zoom percentage. The Zoom to Selected button will be enabled as soon as contours or points are selected. Pressing this button will zoom into the current selection. When you press the Fit to Window button, the glyph will be shown with the largest zoom factor that also shows the ascender and descender lines.
In a font, glyph shapes are described by their outlines. There are three glyph outline types:
Composite glyphs are simply referencing other glyphs - usually, but not limited to, a base character and one or more diacritical marks that are placed above and/ or below the base character.
To select a composite member click on it. If you want to modify specific member data double-click a composite member to open the Composite Glyph Properties window.
Tip: In the Glyph panel you can step through with the Back and Forward blue arrows in the Drawing toolbar to make adjustments.