Undo: Cmd + Z (Mac) / Ctrl + Z (PC)

Redo: Cmd + Shift + Z (Mac) / Ctrl + Shift + Z (PC)

Insert or edit link: Cmd + K (Mac) / Ctrl +K (PC)

Cut: Cmd + X (Mac) / Ctrl + X (PC)

Copy: Cmd + C (Mac) / Ctrl + C (PC)

Paste: Cmd + V (Mac) / Ctrl + V (PC)

Print: Cmd + P (Mac) / Ctrl + P (PC)

Select all: Cmd + A (Mac) / Ctrl + A (PC)

Bold: Cmd + B (Mac) / Ctrl + B (PC)

Italic: Cmd + I (Mac) / Crtl + I (PC)