On 03/13/2013 09:29 AM, Csikos Bela wrote:

Hello:How can I edit text written in math mode in lyx? An example: I write a fraction using \textrm for both the numerator and the denominator. Then I decide to change these to sans serif (textsf). How can I apply the change to the fraction's numerator and denominator? (ie. change the code \textrm to \textsf)?

Erase what you had an redo it. Copy it out first, if you wish, and then paste it back. Richard