How to add features to GISCloud.com Embed map using API

I need to add some features to www.giscloud.com using its API :

Note : to understand what am talk about , you need to signup and then upload some map , and try to explore the service and what does it offer , and its will advantage to have proper background on GIS .

1- To add 3 features to the iframe/embed code that the user use when he need to share his map , by default , there is width,height,bound,toolbar,popups,layer list . like this link : ( this link is real you can open it and study )

http://editor.giscloud.com/rest/1/maps/134046/render.iframe?width=800&height=600&bound=3916327.581219282%2C%203856735.3630424514%2C%203926121.0754683204%2C%203861015.8366264217&toolbar=true&popups=true&layerlist=true

What i want is to add additional 3 features to this like :

1- coordinates ( to send a specific coordinates that i get from my database) 2- Projection type ( to use the projection type that compatible with my coordinates ) 3- Zoom level ( to zoom the map directly on the level that works with my coordinates)

example : ( this link is not real and it's only example of how i imagine the concept )

http://editor.giscloud.com/rest/1/maps/134046/render.iframe?width=800&height=600&bound=3916327.581219282%2C%203856735.3630424514%2C%203926121.0754683204%2C%203861015.8366264217&toolbar=true&popups=true&layerlist=true&Projection_type=EPSG:2039&coordinates=221949.7826,736064.853&Zoom_level=1:2257

API links : http://dev.giscloud.com/ and http://developers.giscloud.com/ .