6.9  GIFT   The GIFT action is used to donate BPs from your treasury to the treasury of another empire. If you have fewer BPs in your treasury than you attempt to give, then the action fails.
Format  [ GIFT ]   [ NOT USED ]  [ WHICH EMPIRE ]  [ Number of BPS ]

6.10  STASH   The STASH action is used to transfer BPs to your treasury, from where they can be reclaimed later by using a CASH action. The cost is three BPs per BP placed in the treasury. If you have fewer BPs remaining than the cost of the action then number of BPs stashed is reduced to the most you can afford. If you have a STASH action for action number 16 and you do not enter a number in the number box, then you spend as many of your remaining BPs as you can.
Format  [ STASH ]  [ NOT USED ]  [ NOT USED ]  [ NUMBER STASHED ]

6.11  CASH   The CASH action is used to transfer build points from your treasury to your current balance (where they can be spent). There is no cost.
Format  [ CASH ]  [ NOT USED ]  [ NOT USED ]  [ NUMBER ]

6.12  TAX  The TAX action adds two extra build points to your current balance. There's no cost (except that it uses up an action).
Format  [ TAX ]  [ NOT USED ]  [ NOT USED ]  [ NOT USED ]
Note: If you've got nothing better to do, fill up the gaps in your turnsheet with TAX actions, and then build something extra at the end to spend the BPs you've made (or let them fall into your tresury in the normal way).

6.13  BASE   The BASE action is used to change the "base" system for your empire. There is no cost. Your base is the system where unused BPs are spent to build cruisers (see 2.9). If you don't want to build cruisers with your spare BPs then use a BASE action with the WHERE box blank.
Format  [ BASE ]  [ WHERE ]  [ NOT USED ]  [ NOT USED ]

6.14  HOME   The HOME action is used to change the "home" system for your empire. There is  no cost. Your home system is where unused BPs are spent to build fighters (see 2.9). If you don't want to build fighters with your spare BPs then use a HOME action with the WHERE box blank.
Format  [ HOME ]  [ WHERE ]  [ NOT USED ]  [ NOT USED ]

6.15  BUSTER   The BUSTER action fires a "Planet Buster" or "Link Buster" bomb (there's only one sort of bomb: it's a planet buster if you fire it at a planet and it's a link buster if you fire it at a star). Buster bombs can only be fired by colony ships and can't be fired from planets or asteroid belts. You can only use as many buster bombs as you have Bomb Tech (a tally is kept of the number of bombs you've used and it's shown in your game report). There is no cost in BPs.
A Planet Buster turns the target planet into an asteroid belt. The population and industry on the planet are wiped out. Defending ships are unaffected (except their owner may be rather cross).
A Link Buster destroys the hyperspace link between the star you've fired it from and the one you've fired it at (you can't destroy the link to planets or asteroids: only the links between stars).
Format  [ BUSTER ]  [ WHERE FROM ]  [ WHERE TO ]  [ NOT USED ]
Note: Buster bombs have no effect on asteroid belts. Be warned that people don't like having their planets destroyed and get nervous about people that go around destroying planets that don't belong to them.
Be careful not to mix up the BUSTER and BOMBARD actions when attacking planets: throwing asteroids at people is precision bombing when compared with throwing planet busters.