fixes in grace export and work on fit dialog

doc/source/conf.py

@@ -39,7 +39,6 @@ version = release
 extensions = [
     'sphinx.ext.autodoc',
     'sphinx.ext.autosummary',
-    'sphinx.ext.inheritance_diagram',
     'sphinx.ext.napoleon',
     'sphinx.ext.viewcode',
     'sphinx.ext.intersphinx',
@@ -55,14 +54,13 @@ intersphinx_mapping = {
     'matplotlib': ('https://matplotlib.org/stable', None),
 }
 
-# autodoc options
+# # autodoc options
 autodoc_typehints = 'none'
 autodoc_class_signature = 'separated'
 autoclass_content = 'class'
 autodoc_member_order = 'groupwise'
-# autodoc_default_options = {'members': False, 'inherited-members': False}
-
-# autosummay options
+#
+# # autosummay options
 autosummary_generate = True
 
 # spinx-gallery