Not yet. It is possible to create a transformation script for the table now, but you cannot delete rows from it. In release 1.2.9 we will have table methods deleteRow and deleteColumn, and then you'll be able to remove unneeded rows from resulting table.
If you have relatively small amount of rows and columns you want to collect, you can use instance discovery instead of tables. Some information about instance discovery is in wiki: http://wiki.netxms.org/wiki/UM:Data_Collection#Instance_Discovery. There are also screencast that could be helpful: http://www.youtube.com/watch?v=HSs9mP_0XK0. ANd this topic on forum could be useful: https://www.netxms.org/forum/configuration/instance-discovery-filter-scrip/.
Best regards,
Victor
If you have relatively small amount of rows and columns you want to collect, you can use instance discovery instead of tables. Some information about instance discovery is in wiki: http://wiki.netxms.org/wiki/UM:Data_Collection#Instance_Discovery. There are also screencast that could be helpful: http://www.youtube.com/watch?v=HSs9mP_0XK0. ANd this topic on forum could be useful: https://www.netxms.org/forum/configuration/instance-discovery-filter-scrip/.
Best regards,
Victor