About ROI Values

Hello Brainstorm Team:
First, I defined a scout containing 2459 dipoles on the cortex, but when I screened the dipoles in the scout, I only selected a small part of the dipoles, for example, only 200. Now I have obtained the index value corresponding to the dipole after filtering, which is a numerical matrix of 200*1, and the value in it is the index value of the dipole. Then I want to extract the corresponding amplitude and time-frequency transformation of these 200 dipoles, then how do I operate?3 In the figure, a is the value in the scout, and index is the index value of the dipole I have filtered

This easiest would be to create a new scout with the subset of vertices you want to process.
Then compute the time-frequency decomposition for this scout.