Cannot use VMD plugin with several molecule loaded

[Benoist LAURENT]

When several molecules are loaded, adding a inclusion/exclusion/seed shape leads to the following error:

expected integer but got "0 1"Not valid molecule id 0 1 in atomselect's 'molId'
expected integer but got "0 1"Not valid molecule id 0 1 in atomselect's 'molId'
    while executing
"atomselect $::epock::molid $::epock::target"
    (procedure "::epock::addSmth" line 137)
    invoked from within
"::epock::addSmth 1 1 0 0 0 0 0 0 0"
    invoked from within
".epock.nb.tab1.inclusion invoke"
    ("uplevel" body line 1)
    invoked from within
"uplevel #0 [list $w invoke]"
    (procedure "tk::ButtonUp" line 23)
    invoked from within
"tk::ButtonUp .epock.nb.tab1.inclusion"
    (command bound to event)

See screenshot joint.