Custom buttons

Save the symbols you use most

Custom buttons live in every keyboard mode. Empty slots show a dashed +. Fill one once — the key face renders the symbol automatically, so you never need a separate name.

• Click + to create a new key
• Type LaTeX like \infty or \nabla
• Press SAVE — the symbol appears on the key
• Right-click any key later to edit or clear it

Create a button in three steps

1. Step 01

   Press an empty + slot

   Find the Custom Buttons panel under the main keyboard. Mint keys are already saved; dashed tiles with a + are empty. Click any empty + to open the editor for that slot.

   Need more room? Press ADD at the end of the row to grow another line of slots. Use Less later if you want to shrink back.

   

2. Step 02

   Type the LaTeX to insert

   In the Custom Button dialog, click the LaTeX to insert field and type the command — for example \nabla, \phi, or \mathbb{R}. A live preview appears under the field so you can confirm the button face before saving.

   Use a real LaTeX command (starting with \), not an HTML entity like φ. The face is rendered with MathLive from the same LaTeX the key will insert.

   

3. Step 03

   Save — then use the key

   Press SAVE. The dialog closes and your new mint key replaces the empty +. Click that key anytime to insert the LaTeX into the equation field. Use CLEAR in the dialog if you want to empty a slot instead.

   To change a key later, right-click it (or long-press on some trackpads) to reopen the same dialog.