I think, this.renderClickCrossTick does only work for MIGXdb - items and only for the published-field, if I'm right out of my head.
But you can try to use this.renderSwitchStatusOptions:
this are the relevant part of the configuration:
{
"MIGX_id":6,
"header":"",
"dataIndex":"published",
"width":"",
"sortable":"false",
"show_in_grid":"0",
"renderer":"this.renderSwitchStatusOptions",
"clickaction":"switchOption",
"selectorconfig":"",
"renderoptions":[
{
"MIGX_id":1,
"name":"unpublish",
"value":1,
"clickaction":"",
"handler":"",
"image":""
},
{
"MIGX_id":2,
"name":"publish",
"value":"0",
"clickaction":"",
"handler":"",
"image":""
}
]
},
don't forget to select the extra-handler this.handleColumnSwitch
"extended":{
"migx_add":"Add Event",
"formcaption":"",
"update_win_title":"",
"win_id":"migxevents",
"maxRecords":5,
"addNewItemAt":"bottom",
"multiple_formtabs":"",
"actionbuttonsperrow":4,
"winbuttonslist":"",
"extrahandlers":"this.handleColumnSwitch",
"filtersperrow":4,
"packageName":"thapriest",
"classname":"Images",
"task":"",
"getlistsort":"",
"getlistsortdir":"",
"use_custom_prefix":"0",
"prefix":"",
"grid":"",
"gridload_mode":1,
"check_resid":1,
"check_resid_TV":"",
"join_alias":"",
"has_jointable":"yes",
"getlistwhere":"",
"joins":"",
"cmpmaincaption":"",
"cmptabcaption":"",
"cmptabdescription":"",
"cmptabcontroller":"",
"winbuttons":"",
"onsubmitsuccess":"",
"submitparams":""
},