<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><font color="#ff0000"><span style="color: rgb(0, 0, 0);">Dear </span><span style="color: rgb(0, 0, 0);">all</span>: <span style="color: rgb(0, 0, 0);"><br><br>I would like to create a smaller simulation box (from a larger simulation box in .gro file) by removing atoms in the x, y and z-directions and saving the subset system into a new .gro file (smaller box and subset of molecules)<br><br>For example: from original box 10x10x10 nm3 write coordinates of the atoms that form 5x5x 5 nm3 core of the larger cube.<br><br></span></font><font color="#ff0000"><span style="color: rgb(0, 0, 0);">I tried editconf and trjconv but they both do not have any such option.</span></font> <font color="#ff0000"><span style="color: rgb(0, 0, 0);">Is there another utility in gromcas that can do
this?<br><br>Thanks,<br>SN<br></span></font></div></body></html>