level up abilities removed if max #

I like the idea of the wow molten core map, but for me I want lots more spells to choose from, however of course I would still only be able to hold about 6(7if max level and hte + is removed)
What Im asking for is, is it possible to have like 30 abilities to choose from but only choose 7, so say I choose 7 then all the others go away but I can still level those 7, using the "wow molten core system" I know I can do this with shops and having buyable spells easily as thats how my old map was, but It be alot better and nicer gameplay If I didnt have to go to shop every time I leveled. Possible without 500 differnt triggers with if/then/else?

What about using a spellbook item with pages. Use dummy abilities for everything in the spellbook and add the real ability to the unit.

http://www.wc3campaigns.net/showthread.php?t=96200

Alternatively, you have something like a "Hero Skillset Building", each one containing a number of skill upgrades with multiple levels. Leveling the upgrade levels the hero ability, and then you use a spellbook on the hero to only show the abilities that have been upgraded.

ya I know how do it with buildings but I just want to do it with the hero.
basicly like this

I press the hero skill button and it shows 3 tabs.
fire spells
ice spells
lighing spells

now each tab has about 10 spells or so in it

K, so so far its like the wow molten core map, except with more abilities, but still has multiple tree system right. so no real changes yet.

Here is the part Im asking about

so lets say I learn 4 of those fire spells and 2ice spells.
now Its going to let met learn more spells, but whats going to happen is its going to push old abilities off my command card, and I will no longer be able to use them. Thats what I want fixed, when I learn 6spells filling my command card, I want all the extra abilties I did not choose to go away and only show spells that I have(so those 4 firespells and 2 ice)
hopefully you understand my question now.

Use an ability array for each hero to keep track of which abilities are learned (ie the type of the ability). Once this array contains the first six abilities, simply remove all other abilities from the hero. Or remove ALL the options, and then re-add the six in the ability array.

is it possible to add them back with still being able to level them up though?

well, you can make a custom ability to replace the + hero ability button, that uses a spellbook full of dummy abilites that add/level up the actual ability..
and if you want more than 12 abilities, you can make a couple of those buttons spellbooks also, so you can make like 3 pages.. (not completely sure if you can put spellbooks in spellbooks)