private bool PatchSingleLayout(LayoutFilePatch p)
{
if (p == null || p.FileName == null) return true;
if (!sarc.Files.ContainsKey(p.FileName))
return false;
var target = new BflytFile(sarc.Files[p.FileName]);
target.ApplyMaterialsPatch(p.Materials); //Do not check result as it fails only if the file doesn't have any material
var res = target.ApplyLayoutPatch(p.Patches);
if (!res) return res;
res = target.AddGroupNames(p.AddGroups);
if (!res) return res;
if (p.PullFrontPanes != null)
foreach (var n in p.PullFrontPanes)
target.PanePullToFront(n);
if (p.PushBackPanes != null)
foreach (var n in p.PushBackPanes)
target.PanePushBack(n);
sarc.Files[p.FileName] = target.SaveFile();
return true;
}