To insert frequently used characters, you don't need the Insert symbol window.
To insert frequently used characters: Open a document for translation. On the Edit ribbon, click Frequent Symbols. From the menu, choose the symbol you want to insert. Or, use the keyboard shortcut for the symbol.
How to get here
Keyboard shortcut: Ctrl+Shift+I.
What can you do?
Or, insert a recently used symbol: Find the symbol in the History box (at the bottom), and double-click it.
If you can't see some of the symbols (there are only boxes): From the Preview font drop-down box, choose a different font until you can see the symbols. If a range or character group (this is a Unicode range undercover) isn't filled in completely, the boxes will remain there regardless of the preview font.
To insert a symbol by its code: Type the code in the Decimal code or in the Hexadecimal code box. The code must be Unicode. Then click Insert.
When you finish
To insert the selected symbol: Click Insert.
To insert a symbol, and close the Insert symbol window automatically: Check the Automatically close form after insertion check box. Double-click the symbol you need. The Insert symbol window will close. memoQ will remember this setting next time you insert a symbol again.