Add modifier, when rolling on a table?

So, I have a table for a volatile weapon. 1 out of 10 things could happen when you use the weapon. The 10th thing on the list, makes it so all additional rolls with the weapon incur a +1 on the table. Is there a way to do this automatically with a command? I tried /roll 1t [ tablename ] +1, and it modifies the output (though I don't understand what it's doing, other than summing to 1 at the end of the output, instead of 0 like it does without the modifier), but doesn't modify the possible outcome of the table. You can still roll the 1 on the table, even if your modifier to your roll should make your lowest possible roll a 2. I understand that the tables aren't a list of 1-10, but rather an overall percentage, but maybe I'm missing something where I can make this happen within the system, rather than resorting to a physical table, and just rolling a normal d10.

I'm also after this feature — planning on using Roll20 for a Deadlands game, and both the Fear and the Injury tables in that are "Roll on this table with modifiers, if you go above 20/below 1, you get a certain result (which IIRC is the same as what you get from 20 or 1 respectively). It'd be pretty handy to be able to be able to put those results into the system and apply the modifiers when we roll 'em.

In the current design of the table system you cannot add a modifier to a table to change the percentage. Sorry.  Perhaps you can post a suggestion in the suggestion forum.  - Gauss

While being able to add a modifier to a table roll could certainly be useful, how would it work with the way Roll20's tables are designed? For example, look at the table I wrote up for another thread: if/then/else/switch That table is weighted with the probabilities of rolling a d20 followed by either nothing, a d6, or 3d10. What would applying a modifier do on such a wonky table?