[Freesurfer] tksurfer vertex location

Dear freesurfer team,

I was trying to obtain the values at a vertex in tksurfer and this is what is written in tksurfer manual.

....*At first, an empty plot will be displayed in a separate window. To generate a plot for a particular vertex, select a point by clicking on the parametric map at that vertex and the plot window will be updated accordingly.*

But is it possible to enter the desired vertex and get the plot rather than trying to point the mouse to exact vertex and update the plot because it looks like I am not good at pointing mouse to exact vertex I want.

Thank you and excuse me for the naive query.

Best, Nabin