Hi,
For numbering and bullets please add this code in appearance>>customize>>custom css
#vibebp_member #course_component .vibebp_main ul{
list-style-type:disc !important;
padding-left: 40px !important;
}
#vibebp_member #course_component .vibebp_main ol{
list-style-type:decimal !important;
padding-left: 38px !important;
}
#vibebp_member #course_component ul.create_course{
list-style-type:none !important;
}
.vibebp_main .course_curriculum_builder .field_curriculum .vibev_editor .vibe_editor ul {
list-style-type: disc !important;
padding-left: 38px !important;
}
#course_unit_popup .unit_content ul{
list-style-type:disc !important;
padding-left:38px !important;
}
#course_unit_popup .unit_content ol{
list-style-type:decimal !important;
padding-left:38px !important;
}
#vibebp_member #course_component ul.course_curriculum_builder_list li.vibe_vibe_course_curriculum, li.vibe_save_curriculum_button {
list-style-type:none !important;
padding-left:0px !important;
}
#vibebp_member #course_component .course_timeline ul {
list-style-type:none !important;
padding-left:0px !important;
}
#vibebp_member #course_component .vibebp_main p+ol{
margin-top:10px !important;
margin-bottom:10px !important;
}
Adjust margin and padding values as per your need.
Appearance>>customize>>custom css is only for css code. You can not add php code there. If you want to add any custom code then you can add and test in wplms customizer plugin.